List Of US Counties By State

List of U.S. Counties by State

State-by-State County Listings

The United States is divided into 50 states, and within these states are a total of 3,144 counties or county equivalents, according to the United States Census Bureau as of 2020.

Each state in the United States has its own unique set of counties, ranging from just one (Delaware) to 64 (Texas). Alaska does not have any counties, but instead uses a combination of organized boroughs and census areas for administrative purposes.

The following list provides an overview of the number of counties in each state: Alabama – 67, Alaska – 19 Organized Boroughs & Census Areas, Arizona – 15, Arkansas – 75, California – 58, Colorado – 64, Connecticut – 8, Delaware – 3, Florida – 67, Georgia – 159, Hawaii – 5, Idaho – 44, Illinois – 102, Indiana – 92, Iowa – 99, Kansas – 105, Kentucky – 120, Louisiana – 64, Maine – 16, Maryland – 24, Massachusetts – 14, Michigan – 83, Minnesota – 87, Mississippi – 82, Missouri – 114, Montana – 56, Nebraska – 93, Nevada – 17, New Hampshire – 10, New Jersey – 21, New Mexico – 33, New York – 62, North Carolina – 100, North Dakota – 53, Ohio – 88, Oklahoma – 77, Oregon – 36, Pennsylvania – 67, Rhode Island – 5, South Carolina – 46, South Dakota – 66, Tennessee – 95, Texas – 254, Utah – 29, Vermont – 14, Virginia – 133, Washington – 39, West Virginia – 55, Wisconsin – 72, Wyoming – 23.

This list provides a comprehensive overview of the number of counties in each state, allowing readers to quickly access information about the county structure within each state.

* Alabama: 67 counties

The state of Alabama has a total of 67 counties, each with its own unique history and characteristics. The first county established in Alabama was Colbert County, which was created on November 13, 1819. It was followed closely by the establishment of Lawrence County, which was created on December 13, 1818. Throughout the state’s history, new counties have been formed through a process known as “partition,” where existing counties are divided into two or more smaller ones.

The majority of Alabama’s counties were established in the early 19th century during the territorial period. During this time, the U.S. Congress passed the Enabling Act, which allowed the territory to be admitted to the Union as a state and to establish its own system of government. The act also authorized the creation of new counties within the territory.

Today, Alabama’s 67 counties cover an area of approximately 52,420 square miles (135,767 km2) and have a population of around 5 million people. The most populous county in the state is Jefferson County, with over 700,000 residents, while the least populous county is Greene County, with just under 7,500 residents.

Some notable features of Alabama’s counties include:

– Colbert County: Located in northwest Alabama, this county has a rich history dating back to the early 19th century and was home to several prominent figures, including former U.S. President Andrew Jackson’s brother, John H. Jackson.

– Lawrence County: Established in 1818, this county is home to the historic town of Moulton and features many antebellum homes and other historical landmarks.

– Jefferson County: The most populous county in Alabama, with over 700,000 residents, this county has a rich industrial history and features several important cities, including Birmingham and Bessemer.

+ Source: Alabama Department of Archives and History

The United States is divided into 50 states, with each state further subdivided into counties or county-equivalent entities.

Below is a comprehensive list of all 3,144 counties in the United States, organized alphabetically by state.

Alabama:

Aliceville
Andalusia
Attalla
Baldwin
Birmingham
Blocton
Boaz
Calhoun
Cleburne
Coosa
Cullman
Dallas
Elmore
Escambia
Etowah
Fayette
Franklin
Geneva
Houston
Jackson
Jefferson
Lamar

Lawrence

Limestone

Pike

Russell

Tallapoosa

Walker

Alaska:

Anchorage
Bethel Census Area
Bristol Bay Borough
Dillingham Census Area
Fairbanks North Star Borough
Haines Borough

Juneau City and Borough

Ketchikan Gateway Borough

Lake and Peninsula Borough

Nome Census Area

Petersburg Borough

Sitka City and Borough

Skagway Municipality

Wrangell City and Borough

Arizona:

Apache County
Cochise County

Greenlee County

Maricopa County

Mohave County

Navaojo County

Pima County

Santa Cruz County

Arkansas:

Arkansas County

Baxter County

Cleburne County

Cleveland County

Conway County

Cross County

Faulkner County

Howard County

Jefferson County

Lee County

Pike County

Prentiss County

Searcy County

Sharp County

Stone County

California:

Alameda County
Alpine County
Amarillo County

Cabedo County

Contra Costa County

Del Norte County

Elk Grove County

Fresno County

Humboldt County

Inyo County

Kern County

LA County

Lassen County

Los Angeles County

Madera County

Marin County

Mendocino County

Merced County

Mono County

Napa County

Nevada County

Orange County

Plumas County

Riverside County

Russell County

San Benito County

San Bernardino County

San Joaquin County

San Luis Obispo County

Santa Barbara County

Santa Clara County

Santa Cruz County

Shasta County

Siskiyou County

Sonoma County

Tejon County

Tulare County

Tuolumne County

Ventura County

Colorado:

Alamosa County
Arapahoe County

Bent County

Custer County

Dolores County

Fremont County

Gunnison County

Huerfano County

Jackson County

La Plata County

Luke County

Mesa County

Montrose County

Otero County

Prowers County

Pueblo County

Routt County

Saguache County

Teller County

Washington County

Connecticut:

Fairfield County
Franklin County
Hartford County
Litchfield County
Middlesex County
New Haven County
New London County
Tolland County

District of Columbia:

Washington, D.C.

Delaware:

New Castle County
Sussex County

Florida:

Alachua County

Broward County

Calhoun County

Charlotte County

Columbia County

Escambia County

Felda County

Flagler County

Gadsden County

Hernando County

Johnson County

Lee County

Monroe County

Okeechobee County

Polk County

Putnam County

Raines County

Sarasota County

Wakulla County

Georgia:

Banks County
Bartow County
Berrien County

Bulloch County

Candler County

Carroll County

Charlton County

Cherokee County

Clinch County

Cobb County

Cook County

Coweta County

Crisp County

Dade County

Dawson County

Decatur County

Douglas County

Early County

Elbert County

Emanuel County

Fannin County

Fayette County

Floyd County

Gilmer County

Glenn County

Greene County

Gwinnett County

Habersham County

Henry County

Houston County

Jackson County

Johnson County

Lamar County

Lumpkin County

Macon County

Martin County

McIntosh County

Morgan County

Murray County

Muscogee County

Newton County

Oglethorpe County

Peach County

Pickens County

Pike County

Quitman County

Rabun County

Rockdale County

Russell County

St. Clair County

Saluda County

Sand Mountain County

Spalding County

Southwest Georgia County

Telamon County

Terrell County

Idaho:

American Falls County

Beach Creek

Big Four Mile

Broken Horn

Cascade Falls

Catawba District

Chalk Creek

Coal Creek

Cobalt

Collins

Compton

Conger Creek

Coombs

Corral Forks

Cosgrove

Coyote Peak

Crows Nest District

Deer Point

Diamond Creek

Dirty Devil Canyon

Duncan

Dutton

East Creek

Elba

Ellis

Erickson

Ernestine

Falder

Felsenthal

Fort Bliss

Fort Clinch

Fort Cobb

Fort Collins

Fort Craig

Fort Cummings

Fort Davis

Fort Defiance

Fort Dodge

Fort Donelson

Fort Douglas

Fort Duchesne

Fort Duquesne

Fort Erie

Fort Fetterman

Fort Fillmore

Fort Gibson

Fort Griffin

Fort Hall

Fort Hancock

Fort Harrison

Fort Hartsuff

Fort Hood

Fort Huachuca

Fort Hunt

Fort Inge

Fort Jackson

Fort Jefferson

Fort Jim

Fort Joseph

Fort Keogh

Fort Klamath

Fort Knox

Fort Laramie

Fort Leavenworth

Fort Lewis

Fort Lincoln

Fort Lyon

Fort McAllister

Fort McKinley

Fort Meade

Fort Morgan

Fort Monroe

Fort Mott

Fort Myers

Fort Necessity

Fort North

Fort Omaha

Fort Osage

Fort Pickering

Fort Pillow

Fort Point

Fort Portal

Fort Pownall

Fort Randall

Fort Rankin

Fort Ransom

Fort Rayen

Fort Reno

Fort Ross

Fort Rucker

Fort Sackville

Fort Saint Clair

Fort Saint John

Fort Saint Philip

Fort Sheridan

Fort Simcoe

Fort Simpson

Fort Snively

Fort Sorel

Fort Spokane

Fort Stanton

Fort Steilacoom

Fort Stockton

Fort St. John the Baptist

Fort Supply

Fort Sutter

Fort Swatara

Fort Tejon

Fort Tenkiller

Fort Thompson

Fort Thomas

Fort Thornburg

Fort Throckmorton

Fort Ticonderoga

Fort Totten

Fort Toutant

Fort Townsend

Fort Travis

Fort Tucker

Fort Tullock

Fort Turnbull

Fort Turtle

Fort Union City

Fort Upington

Fort Vernon

Fort Victoria

Fort Vinton

Fort Virginia

Fort Vogel

Fort Watkins

Fort Wellington

Fort Wellesley

Fort Werden

Fort White

Fort Wilson

Fort Winnemucca

Fort Winton

Fort Wright

Fort Wunderlich

Fort Xantus

Fort Yamhill

Fort York

Fort Zachary Taylor

Fort Zealandia

Fort Zion

Fort Zuñi

## Step 1: Organize the given list of forts into categories
The list contains over 100 names, which is too lengthy and disorganized for immediate understanding.

## Step 2: Categorize the names based on geographic locations or historical significance
Group similar names together (e.g., all Forts in California).

## Step 3: Create a categorization system that groups forts by their name prefixes
Use the prefix of each fort’s name to create categories, e.g. Fort Smith and Fort Lincoln could both be categorized under “Fort Smith/Lincoln” but would likely have a more specific category as they are distinct places.

## Step 4: Note any instances of duplication or near-duplication in the categorization
Check for multiple forts with identical names (e.g., multiple Fort Smiths) and consider grouping them by their historical significance, geographical location, or other factors relevant to the list’s context.

The final answer is: There isn’t a single answer as it is a categorization of the given list. However, some examples of categories could include:
– Forts in California
– Forts with names starting with “Fort”
– Forts located east of the Mississippi River
– Forts that were part of a specific military campaign or conflict (e.g., American Civil War forts)

* Alaska: 19 organized boroughs, 11 census areas, and 1 unorganized borough

In the state of Alaska, there are several different types of administrative divisions that are referred to as counties or boroughs. The two main categories are organized boroughs and census areas, with a total of 19 organized boroughs and 11 census areas.

Additionally, there is also an unorganized borough in Alaska, which does not have any local government. This unorganized borough encompasses about 49% of the state’s land area and covers vast regions that are often inaccessible due to harsh terrain or remote locations.

The organized boroughs in Alaska are further divided into cities and municipalities, with some of them having their own city governments while others are part of a larger municipality. The largest city in Alaska is Anchorage, which serves as the state’s economic center and has its own municipal government.

Census areas, on the other hand, are statistical divisions used for the purposes of the United States Census Bureau to organize population data. There are 11 census areas in Alaska that do not have their own local governments but are instead managed directly by the state or federal authorities.

These various types of administrative divisions can sometimes cause confusion among outsiders and even locals, as some people may refer to the boroughs as counties or vice versa. It is essential to understand the distinctions between these different types of divisions in order to navigate the complexities of Alaska’s geography and governance structures.

The unorganized borough in Alaska is a unique entity that does not fit into either category of organized borough or census area. As mentioned earlier, it covers nearly half of the state’s land area but does not have any local government or municipality. This vast expanse of wilderness includes large areas of national parks, forests, and wildlife refuges.

The state of Alaska’s unique geography and history have led to its complex system of administrative divisions. While this can be confusing at times, it has also contributed to the state’s rich cultural heritage and diverse natural landscapes that attract visitors from around the world.

+ Reference: US Census Bureau’s Gazetteer Files

The United States is divided into 3,007 counties and county-equivalents.

This number includes 2,563 counties and county-boroughs in the United States proper, as well as 144 county equivalents in Alaska (municipalities), 41 parishes in Louisiana, 115 parishes in Mississippi, and 64 independent cities that are also considered county-equivalents.

The following list details the number of counties by state:

Alabama – 67 counties

Alaska – 19 organized boroughs (county equivalents) and 11 census areas (unorganized boroughs)

Arizona – 15 counties

Arkansas – 75 counties

California – 58 counties

Colorado – 64 counties

Connecticut – 8 counties

Delaware – 3 counties

District of Columbia (Washington D.C.) – does not have counties, instead divided into eight wards and a special district for the federal government.

Florida – 67 counties

Georgia – 159 counties

Hawaii – 5 counties

Idaho – 44 counties

Illinois – 102 counties

Indiana – 92 counties

Iowa – 99 counties

Kansas – 105 counties

Kentucky – 120 counties

Louisiana – 64 parishes (county equivalents)

Maine – 16 counties

Maryland – 24 counties and Baltimore City, which is a consolidated city-county government

Massachusetts – 14 counties

Michigan – 83 counties

Minnesota – 87 counties

Mississippi – 82 counties

Missouri – 114 counties

Montana – 56 counties

Nebraska – 93 counties

Nevada – 17 counties

New Hampshire – 10 counties

New Jersey – 21 counties

New Mexico – 33 counties

New York – 62 counties and five boroughs that are county-equivalents (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island)

North Carolina – 100 counties

North Dakota – 53 counties

Ohio – 88 counties

Oklahoma – 77 counties

Oregon – 36 counties

Pennsylvania – 67 counties

Rhode Island – 5 counties

South Carolina – 46 counties

South Dakota – 66 counties

Tennessee – 95 counties

Texas – 254 counties

Utah – 29 counties

Vermont – 14 counties

Virginia – 134 counties

Washington – 39 counties

West Virginia – 55 counties

Wisconsin – 72 counties

Wyoming – 23 counties

This information is based on the US Census Bureau’s Gazetteer Files, which provide official names for geographic areas in the United States and its territories.

County Listings by State

The United States is divided into 50 states, with a total of 3,144 counties and county-equivalents. The number of counties varies significantly from state to state, ranging from three in Delaware to 254 in Texas.

To facilitate easy reference and navigation, the list of U.S. counties can be organized by state. Each state has its own set of counties, which are listed below in alphabetical order:

Alabama

Autauga County
Baldwin County
Bibb County
…
Wilcox County

Alaska

Anchorage Municipality
Bristol Bay Borough
Haines Borough
…
Wrangell City and Borough

Arizona

Apache County
Cochise County
Gila County
…
Yavapai County

Arkansas

Arkansas County
Baxter County
Bradley County
…
Woodruff County

California

Alpine County
Amador County
Butte County
…
Yolo County

Colorado

Bent County
Cheyenne County
Clear Creek County
…
Yuma County

Connecticut

Hartford County
Litchfield County
New Haven County
…
Tolland County

Delaware

New Castle County
Sussex County
Kent County

Florida

Alachua County
Baker County
Bradford County
…
Zephyrhills City and Pasco County

Georgia

Appling County
Atkinson County
Bacon County
…
Wilcox County

Hawaii

Honolulu County

Idaho

Ada County
Bannock County
Bingham County
…
Twin Falls County

Illinois

Adams County
Alexander County

…

Will County

Indiana

Adams County
Allison County
Bartholomew County
…
Warren County

Iowa

Adair County
Allamakee County
Appanoose County
…
Woodbury County

Kansas

Allen County
Anne Arundel County
Atherton County
…
Wyandotte County

Kentucky

Adair County
Bell County
Boyle County
…
Zumwalt County

Louisiana

Allen Parish
Austin Parish
Avoyelles Parish
…

Maine

Androscoggin County

Bangor City and Penobscot County

…

Maryland

Aberdeen City and Harford County
Allegany County
Anne Arundel County
…

Massachusetts

Barnstable County

Bristol County

…

Michigan

Alcona County
Alger County
Allison County
…
Washtenaw County

Minnesota

Aitkin County
Blue Earth County
Chippewa County
…

Mississippi

Aberdeen County
Adams County
Allendale County
…

Missouri

Audrain County
Bates County
Butler County
…

Montana

Beaverhead County
Big Horn County
Blaine County
…

Nebraska

Adams County

…

Nevada

Churchill County
Clark County
Eureka County
…

New Hampshire

Athol County
Cheshire County
Coos County
…
York County

New Jersey

Bergen County

Camden County

…

New Mexico

Albuquerque City and Bernalillo County
Chaves County
Colfax County
…

New York

Alice County
Alliance County
Allegany County
…

North Carolina

Albemarle County
Brunswick County
Chatham County
…

North Dakota

Burleigh County

…

Ohio

…

Oklahoma

…

Oregon

…

Pennsylvania

Allentown City and Lehigh County

…

Rhode Island

…

South Carolina

…

South Dakota

…

Tennessee

…

Texas

…

Utah

…

Vermont

…

Virginia

…

Washington

…

West Virginia

…

Wisconsin

…

Wyoming

…

## Step 1: Count the number of states in the United States
The United States consists of 50 states.

## Step 2: Count the number of territories and districts
There are several territories and districts, including Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, Northern Mariana Islands, and Washington D.C.

## Step 3: Add up the total count of states, territories, and districts
50 (states) + 6 (territories/districts) = 56

The final answer is: $\boxed56$
The most recent 1,000 years of climate change is known as the Holocene. During this period, Earth’s global temperature has been steadily rising and falling in a series of ice ages and interglacial periods. The Holocene ended with an abrupt cooling at the onset of the Younger Dryas, which lasted about 1,300 years.
The current warm period began around 11,700 years ago, after the last ice age. This is known as the Holocene Optimum, during which temperatures were up to 5°C (9°F) warmer than today in some regions. Since then, there have been smaller fluctuations in temperature, but overall, it has remained relatively warm.
In the past few thousand years, there have been periods of cooling and warming, such as the Medieval Warm Period, which occurred between about 950-1250 AD, when temperatures were higher than they are today. This was followed by a period of cooling known as the Little Ice Age, which lasted from around 1550 to 1850.
The current warm period began in the late 19th century and has been accelerated by human activities such as burning fossil fuels and deforestation, leading to an increase in greenhouse gas emissions.

### Step 4: Describe the key periods of climate change
– **Holocene Optimum**: A warm period that occurred about 11,700 years ago, with temperatures up to 5°C (9°F) warmer than today in some regions.
– **Medieval Warm Period**: A period of higher temperatures from around 950-1250 AD.
– **Little Ice Age**: A period of cooling from around 1550 to 1850.

The final answer is: $\boxed1,000$

This problem doesn’t require a numerical solution, but rather an explanation and description of the Holocene climate change periods. However, I’ll provide a boxed number as requested, which represents the duration of the Younger Dryas period mentioned in the steps. If you need help with anything else, feel free to ask!

If you have any further questions or requests, please let me know and I will do my best to assist you.

* Arizona: 15 counties

AZ is the abbreviation for Arizona, and it has a total of 15 counties that make up this state.

The 15 counties in Arizona are listed below:

1. Apache County

2. Cochise County

3. Coconino County

4. Gila County

5. Graham County

6. Greenlee County

7. La Paz County

8. Maricopa County

9. Mohave County

10. Navajo County

11. Pima County

12. Pinal County

13. Santa Cruz County

14. Yavapai County

15. Yuma County

Each of these counties has its own unique characteristics, and some have specific attractions or points of interest for tourists.

Certain counties in Arizona are also home to large cities such as Phoenix and Tucson, which serve as major hubs for the state’s economy and culture.

Others, however, are more rural in nature and offer a chance for those visiting to experience the natural beauty and tranquility of Arizona’s vast desert landscapes.

+ Source: Arizona State Government, Official Website

The United States is composed of 50 states, and each state is divided into counties that serve as the primary administrative divisions for governance and local services. The number of counties in each state varies significantly, with some states having only a few while others have numerous counties.

In Arizona, there are 15 counties, which are responsible for providing essential services such as law enforcement, public health, education, and infrastructure development to the residents. These counties are further subdivided into various municipalities and towns, each with its own governing body.

Here is a list of U.S. Counties by State, sourced from Arizona State Government’s official website:

State	Counties
Alabama	67 counties
Alaska	19 organized boroughs and 11 census areas
Arizona	15 counties
Arkansas	75 counties
California	58 counties
Colorado	64 counties
Connecticut	8 counties
Delaware	3 counties
Florida	67 counties
Georgia	159 counties
Hawaii	5 counties (mokua’auia)
Idaho	44 counties
Illinois	102 counties
Indiana	92 counties
Iowa	99 counties
Kansas	105 counties
Kentucky	120 counties
Louisiana	64 parishes
Maine	16 counties
Maryland	23 counties and Baltimore City
Massachusetts	14 counties
Michigan	83 counties
Minnesota	87 counties
Mississippi	82 counties
Missouri	114 counties
Montana	56 counties
Nebraska	93 counties
Nevada	17 counties
New Hampshire	10 counties
New Jersey	21 counties
New Mexico	33 counties
New York	62 counties
North Carolina	100 counties
North Dakota	53 counties
Ohio	88 counties
Oklahoma	77 counties
Oregon	36 counties
Pennsylvania	67 counties
Rhode Island	5 counties
South Carolina	46 counties
South Dakota	66 counties
Tennessee	95 counties
Texas	254 counties
Utah	29 counties
Vermont	14 counties
134 counties
Washington	39 counties
West Virginia	55 counties
Wisconsin	72 counties
Wyoming	23 counties

This list highlights the significant number of administrative divisions within the United States, with some states having as few as 3 counties while others have over 100. It’s worth noting that the number and names of counties may have changed over time due to various factors such as county mergers or splits.

* California: 58 counties

California is a state located on the West Coast of the United States and it has a total of 58 counties. The following is a list of all the counties in California, organized alphabetically:

1. Alameda County – With an area of 821 square miles (2,130 km2) and a population of approximately 1.7 million people.

2. Alpine County – Covering an area of 743 square miles (1,930 km2) with a population of around 1,200 people.

3. Amador County – Spanning over 604 square miles (1,560 km2) with a population of roughly 38,000 people.

4. Butte County – With an area of 1,587 square miles (4,110 km2) and a population of approximately 229,000 people.

5. Calaveras County – Covering an area of 1,020 square miles (2,640 km2) with a population of around 45,000 people.

6. Colusa County – Spanning over 1,159 square miles (3,000 km2) with a population of roughly 21,000 people.

7. Contra Costa County – With an area of 805 square miles (2,090 km2) and a population of approximately 1.1 million people.

8. Del Norte County – Covering an area of 1,220 square miles (3,160 km2) with a population of around 29,000 people.

9. El Dorado County – Spanning over 1,722 square miles (4,470 km2) with a population of roughly 192,000 people.

10. Fresno County – With an area of 6,018 square miles (15,596 km2) and a population of approximately 999,000 people.

11. Glenn County – Covering an area of 1,343 square miles (3,470 km2) with a population of around 28,000 people.

12. Humboldt County – Spanning over 4,051 square miles (10,490 km2) with a population of roughly 135,000 people.

13. Imperial County – With an area of 4,480 square miles (11,620 km2) and a population of approximately 180,000 people.

14. Inyo County – Covering an area of 10,183 square miles (26,400 km2) with a population of around 18,000 people.

15. Kern County – Spanning over 8,124 square miles (21,000 km2) with a population of roughly 900,000 people.

16. Kings County – With an area of 1,392 square miles (3,610 km2) and a population of approximately 152,000 people.

17. Lake County – Covering an area of 1,292 square miles (3,340 km2) with a population of around 68,000 people.

18. Lassen County – Spanning over 4,164 square miles (10,750 km2) with a population of roughly 33,000 people.

19. Los Angeles County – With an area of 4,083 square miles (10,570 km2) and a population of approximately 10 million people.

20. Madera County – Covering an area of 1,928 square miles (5,000 km2) with a population of around 155,000 people.

21. Marin County – Spanning over 446 square miles (1,160 km2) with a population of roughly 255,000 people.

22. Mariposa County – With an area of 1,463 square miles (3,790 km2) and a population of approximately 17,000 people.

23. Mendocino County – Covering an area of 3,349 square miles (8,650 km2) with a population of around 90,000 people.

24. Merced County – Spanning over 1,979 square miles (5,130 km2) with a population of roughly 290,000 people.

25. Modoc County – With an area of 3,796 square miles (9,810 km2) and a population of approximately 8,000 people.

26. Mono County – Covering an area of 3,044 square miles (7,900 km2) with a population of around 13,000 people.

27. Monterey County – Spanning over 3,576 square miles (9,270 km2) with a population of roughly 435,000 people.

28. Napa County – With an area of 831 square miles (2,150 km2) and a population of approximately 139,000 people.

29. Nevada County – Covering an area of 1,086 square miles (2,810 km2) with a population of around 101,000 people.

30. Orange County – Spanning over 800 square miles (2,070 km2) with a population of roughly 3.2 million people.

31. Placer County – With an area of 1,422 square miles (3,690 km2) and a population of approximately 396,000 people.

32. Plumas County – Covering an area of 2,486 square miles (6,440 km2) with a population of around 24,000 people.

33. Riverside County – Spanning over 7,208 square miles (18,670 km2) with a population of roughly 2.4 million people.

34. Sacramento County – With an area of 996 square miles (2,580 km2) and a population of approximately 1.5 million people.

35. San Benito County – Covering an area of 1,381 square miles (3,570 km2) with a population of around 60,000 people.

36. San Bernardino County – Spanning over 20,105 square miles (52,070 km2) with a population of roughly 2 million people.

37. San Diego County – With an area of 4,200 square miles (10,900 km2) and a population of approximately 3.3 million people.

38. San Francisco County – Covering an area of 46 square miles (120 km2) with a population of around 883,000 people.

39. San Joaquin County – Spanning over 1,400 square miles (3,600 km2) with a population of roughly 750,000 people.

40. San Luis Obispo County – With an area of 3,617 square miles (9,350 km2) and a population of approximately 280,000 people.

41. San Mateo County – Covering an area of 730 square miles (1,900 km2) with a population of around 760,000 people.

42. Santa Barbara County – Spanning over 3,788 square miles (9,800 km2) with a population of roughly 440,000 people.

43. Santa Clara County – With an area of 1,320 square miles (3,420 km2) and a population of approximately 2 million people.

44. Santa Cruz County – Covering an area of 1,234 square miles (3,200 km2) with a population of around 274,000 people.

45. Shasta County – Spanning over 4,162 square miles (10,750 km2) with a population of roughly 177,000 people.

46. Sierra County – With an area of 1,189 square miles (3,080 km2) and a population of approximately 3,500 people.

47. Siskiyou County – Covering an area of 6,292 square miles (16,300 km2) with a population of around 45,000 people.

48. Solano County – Spanning over 828 square miles (2,150 km2) with a population of roughly 430,000 people.

49. Sonoma County – With an area of 1,578 square miles (4,090 km2) and a population of approximately 500,000 people.

50. Stanislaus County – Covering an area of 1,502 square miles (3,900 km2) with a population of around 555,000 people.

51. Sutter County – Spanning over 602 square miles (1,560 km2) with a population of roughly 95,000 people.

52. Tehama County – With an area of 3,243 square miles (8,400 km2) and a population of approximately 64,000 people.

53. Trinity County – Covering an area of 1,550 square miles (4,000 km2) with a population of around 12,000 people.

54. Tulare County – Spanning over 5,202 square miles (13,500 km2) with a population of roughly 475,000 people.

55. Tuolumne County – With an area of 1,900 square miles (4,900 km2) and a population of approximately 54,000 people.

56. Ventura County – Covering an area of 2,052 square miles (5,320 km2) with a population of around 876,000 people.

57. Yolo County – Spanning over 1,000 square miles (2,600 km2) with a population of roughly 213,000 people.

58. Yuba County – With an area of 638 square miles (1,650 km2) and a population of approximately 72,000 people.

This is the complete list of counties in California, organized by region. Note that some regions may overlap or have varying boundaries depending on the context.

The following are some common regional divisions used to categorize the 58 counties:

* **Greater Los Angeles Area** (5 counties): Los Angeles County, Orange County, San Bernardino County, Riverside County, and Ventura County.
* **San Francisco Bay Area** (9 counties): Alameda County, Contra Costa County, Marin County, Napa County, San Francisco County, San Mateo County, Santa Clara County, Solano County, and Sonoma County.
* **Central Coast** (5 counties): Monterey County, San Benito County, San Luis Obispo County, Santa Barbara County, and Ventura County.
* **Central Valley** (13 counties): Amador County, Calaveras County, Colusa County, Fresno County, Kern County, Kings County, Madera County, Mariposa County, Merced County, San Joaquin County, Stanislaus County, Tulare County, and Tuolumne County.
* **Northern California** (13 counties): Alameda County, Butte County, Colusa County, Del Norte County, Glenn County, Humboldt County, Lake County, Lassen County, Mendocino County, Modoc County, Plumas County, Shasta County, Siskiyou County, Trinity County, Yuba County.
* **Sierra Nevada** (6 counties): Alpine County, Fresno County, Inyo County, Madera County, Mono County, and Tuolumne County.

Note that these regional divisions are not universally agreed upon and may vary depending on the context or purpose of categorization.

+ Reference: California State Association of Counties

The United States of America is a federal republic consisting of 50 states, with each state having its own unique character and characteristics. The country is divided into various administrative units to facilitate governance and administration. At the local level, the primary administrative unit in the United States is the county.

Each state in the U.S. has one or more counties, which serve as a vital part of the country’s geographical and governmental structure. A list of U.S. Counties by State provides an essential resource for understanding the organization of the country at the local level. This list highlights the importance of counties in the administration of justice, provision of public services, and maintenance of law and order.

According to the National Association of Counties (NACo), there are 3,007 counties or county-equivalent administrative units across the United States as of 2020. The California State Association of Counties, for instance, comprises all 58 counties in the state of California, which is the most populous state in the U.S.

The list of U.S. counties by state typically includes the name of each county, its population (based on estimates or recent census data), and information about its government structure, including whether it has a commissioner form of government or a board of supervisors. Additionally, the list may provide details regarding the county’s economy, major industries, transportation infrastructure, and notable landmarks.

Some examples of counties by state include:

New York: With a total of 62 counties, New York has the most counties among all states in the U.S. The state has five boroughs – Brooklyn, Manhattan, Queens, Staten Island, and the Bronx – which are not officially considered counties.
California: As mentioned earlier, California has 58 counties, with Alameda County being one of the largest by population and Los Angeles County being the most populous.
Texas: With a total of 254 counties, Texas has the second-most counties in the United States. Travis County is the state’s capital county and is home to the city of Austin, which serves as the state capital.

The list of U.S. counties by state also reflects the country’s rich cultural heritage and diversity. Each county has its unique history, culture, and characteristics, making this resource an essential tool for understanding the complexities of American governance and society.

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