Member
Population
Miles
Size
CaliforniaCalifornia has 58 Counties.
|
California Data Sets California Links |
California State Association of Counties 1100 K Street, Suite 101 Sacramento, CA 95814-3932 Phone: (916)327-7500 Fax: (916)441-5507 http://www.csac.counties.org
|
| County | NACo Member |
2010 Population |
Square Miles |
County Seat | Board Size |
Founded |
|---|---|---|---|---|---|---|
| Alameda | |
1,510,271 | 739 | Oakland | 5 | 1853 |
| Alpine | |
1,175 | 738 | Markleeville | 5 | 1864 |
| Amador | |
38,091 | 595 | Jackson | 5 | 1854 |
| Butte | |
220,000 | 1,636 | Oroville | 5 | 1850 |
| Calaveras | |
45,578 | 1,020 | San Andreas | 5 | 1850 |
| Colusa | |
21,419 | 1,151 | Colusa | 5 | 1850 |
| Contra Costa | |
1,049,025 | 716 | Martinez | 5 | 1850 |
| Del Norte | |
28,610 | 1,006 | Crescent City | 5 | 1857 |
| El Dorado | |
181,058 | 1,708 | Placerville | 5 | 1850 |
| Fresno | 930,450 | 5,958 | Fresno | 5 | 1856 | |
| Glenn | |
28,122 | 1,314 | Willows | 5 | 1891 |
| Humboldt | |
134,623 | 3,568 | Eureka | 5 | 1853 |
| Imperial | |
174,528 | 4,177 | El Centro | 5 | 1907 |
| Inyo | |
18,546 | 10,181 | Independence | 5 | 1866 |
| Kern | |
839,631 | 8,132 | Bakersfield | 5 | 1866 |
| Kings | |
152,982 | 1,389 | Hanford | 5 | 1893 |
| Lake | |
64,665 | 1,256 | Lakeport | 5 | 1861 |
| Lassen | |
34,895 | 4,541 | Susanville | 5 | 1864 |
| Los Angeles | |
9,818,605 | 4,058 | Los Angeles | 5 | 1850 |
| Madera | |
150,865 | 2,137 | Madera | 5 | 1893 |
| Marin | |
252,409 | 520 | San Rafael | 5 | 1850 |
| Mariposa | |
18,251 | 1,449 | Mariposa | 5 | 1850 |
| Mendocino | |
87,841 | 3,506 | Ukiah | 5 | 1850 |
| Merced | |
255,793 | 1,935 | Merced | 5 | 1855 |
| Modoc | 9,686 | 3,918 | Alturas | 5 | 1874 | |
| Mono | |
14,202 | 3,049 | Bridgeport | 5 | 1861 |
| Monterey | |
415,057 | 3,281 | Salinas | 5 | 1850 |
| Napa | |
136,484 | 748 | Napa | 5 | 1850 |
| Nevada | |
98,764 | 958 | Nevada City | 5 | 1851 |
| Orange | |
3,010,232 | 791 | Santa Ana | 5 | 1889 |
| Placer | |
348,432 | 1,407 | Auburn | 5 | 1851 |
| Plumas | |
20,007 | 2,553 | Quincy | 5 | 1854 |
| Riverside | |
2,189,641 | 7,206 | Riverside | 5 | 1893 |
| Sacramento | |
1,418,788 | 965 | Sacramento | 5 | 1850 |
| San Benito | 55,269 | 1,389 | Hollister | 5 | 1874 | |
| San Bernardino | |
2,035,210 | 20,057 | San Bernardino | 5 | 1853 |
| San Diego | |
3,095,313 | 4,207 | San Diego | 5 | 1850 |
| San Francisco * | |
805,235 | 47 | San Francisco | 11 | 1850 |
| San Joaquin | |
685,306 | 1,391 | Stockton | 5 | 1850 |
| San Luis Obispo | |
269,637 | 3,299 | San Luis Obispo | 5 | 1850 |
| San Mateo | |
718,451 | 448 | Redwood City | 5 | 1856 |
| Santa Barbara | |
423,895 | 2,735 | Santa Barbara | 5 | 1850 |
| Santa Clara | |
1,781,642 | 1,290 | San Jose | 5 | 1850 |
| Santa Cruz | |
262,382 | 445 | Santa Cruz | 5 | 1850 |
| Shasta | |
177,223 | 3,775 | Redding | 5 | 1850 |
| Sierra | |
3,240 | 953 | Downieville | 5 | 1852 |
| Siskiyou | |
44,900 | 6,278 | Yreka | 5 | 1852 |
| Solano | |
413,344 | 822 | Fairfield | 5 | 1850 |
| Sonoma | |
483,878 | 1,576 | Santa Rosa | 5 | 1850 |
| Stanislaus | 514,453 | 1,495 | Modesto | 5 | 1854 | |
| Sutter | |
94,737 | 602 | Yuba City | 5 | 1850 |
| Tehama | |
63,463 | 2,950 | Red Bluff | 5 | 1856 |
| Trinity | |
13,786 | 3,179 | Weaverville | 5 | 1850 |
| Tulare | 442,179 | 4,824 | Visalia | 5 | 1852 | |
| Tuolumne | |
55,365 | 2,221 | Sonora | 5 | 1850 |
| Ventura | |
823,318 | 1,843 | Ventura | 5 | 1872 |
| Yolo | |
200,849 | 1,015 | Woodland | 5 | 1850 |
| Yuba | 72,155 | 632 | Marysville | 5 | 1850 |