AREA AND POPULATION OF CALIFORNIA BY COUNTIES.
| County | Map Index. |
County Seat. | Area in square miles. |
Population. | |
| 1890. | 1900. | ||||
| Alameda | C 3 | Oakland | 764 | 93,864 | 130,197 |
| Alpine | D 2 | Markleeville | 710 | 667 | 509 |
| Amador | C 2 | Jackson | 632 | 10,320 | 11,116 |
| Butte | C 2 | Oroville | 1,660 | 17,939 | 17,117 |
| Calaveras | C 2 | San Andreas | 1,080 | 8,882 | 11,200 |
| Colusa | B 2 | Colusa | 1,088 | 14,640 | 7,364 |
| Contra Costa | B 3 | Martinez | 728 | 13,515 | 18,046 |
| Del Norte | B 1 | Crescent City | 992 | 2,592 | 2,408 |
| Eldorado | C 2 | Placerville | 1,796 | 9,232 | 8,986 |
| Fresno | C 3 | Fresno | 6,152 | 32,026 | 37,862 |
| Glenn | B 2 | Willow | 1,270 | ...... | 5,150 |
| Humboldt | B 1 | Eureka | 3,496 | 23,469 | 27,104 |
| Inyo | E 3 | Independence | 10,294 | 3,544 | 4,377 |
| Kern | D 4 | Bakersfield | 8,050 | 9,808 | 16,480 |
| Kings | D 3 | Hanford | 984 | ...... | 9,871 |
| Lake | B 2 | Lakeport | 1,328 | 7,101 | 6,017 |
| Lassen | C 1 | Susanville | 4,520 | 4,239 | 4,511 |
| Los Angeles | D 4 | Los Angeles | 4,202 | 101,454 | 170,298 |
| Madera | D 3 | Madera | 2,062 | ...... | 6,364 |
| Marin | B 2 | San Rafael | 549 | 13,072 | 15,702 |
| Mariposa | C 3 | Mariposa | 1,510 | 3,787 | 4,720 |
| Mendocino | B 2 | Ukiah | 3,626 | 17,612 | 20,465 |
| Merced | C 3 | Merced | 1,932 | 8,085 | 9,215 |
| Modoc | C 1 | Alturas | 3,741 | 4,986 | 5,076 |
| Mono | D 3 | Bridgeport | 3,020 | 2,002 | 2,167 |
| Monterey | C 3 | Salinas | 3,340 | 18,637 | 19,380 |
| Napa | B 2 | Napa | 780 | 16,411 | 16,451 |
| Nevada | C 2 | Nevada City | 972 | 17,369 | 17,789 |
| Orange | D 5 | Santa Ana | 750 | 13,589 | 19,696 |
| Placer | C 2 | Auburn | 1,365 | 15,101 | 15,786 |
| Plumas | C 1 | Quincy | 2,694 | 4,933 | 4,657 |
| Riverside | E 5 | Riverside | 7,323 | ...... | 17,897 |
| Sacramento | E 2 | Sacramento | 1,000 | 40,339 | 45,915 |
| San Benito | C 3 | Hollister | 1,388 | 6,412 | 6,633 |
| San Bernardino | E 4 | San Bernardino | 19,947 | 25,497 | 27,929 |
| San Diego | F 5 | San Diego | 8,478 | 34,987 | 35,090 |
| San Francisco | B 3 | San Francisco | 47 | 298,997 | 342,782 |
| San Joaquin | C 3 | Stockton | 1,396 | 28,629 | 35,452 |
| San Luis Obispo | C 4 | San Luis Obispo | 3,310 | 16,072 | 16,637 |
| San Mateo | B 3 | Redwood City | 434 | 10,087 | 12,094 |
| Santa Barbara | C 4 | Santa Barbara | 2,632 | 15,754 | 18,934 |
| Santa Clara | C 3 | San José | 1,286 | 48,005 | 60,216 |
| Santa Cruz | B 3 | Santa Cruz | 424 | 19,270 | 21,512 |
| Shasta | B 1 | Redding | 3,876 | 12,133 | 17,318 |
| Sierra | C 1 | Downieville | 960 | 5,051 | 4,017 |
| Siskiyou | B 1 | Yreka | 5,991 | 12,163 | 16,962 |
| Solano | C 2 | Fairfield | 900 | 20,946 | 24,143 |
| Sonoma | B 2 | Santa Rosa | 1,620 | 32,721 | 38,480 |
| Stanislaus | C 3 | Modesto | 1,456 | 10,040 | 9,550 |
| Sutter | C 2 | Yuba City | 622 | 5,469 | 5,886 |
| Tehama | B 1 | Redbluff | 3,008 | 9,916 | 10,995 |
| Trinity | B 1 | Weaverville | 3,282 | 3,719 | 4,383 |
| Tulare | D 3 | Visalia | 4,952 | 24,574 | 18,375 |
| Tuolumne | C 2 | Sonora | 2,208 | 6,082 | 11,166 |
| Ventura | D 4 | Ventura | 1,721 | 10,071 | 14,367 |
| Yolo | C 2 | Woodland | 996 | 12,684 | 13,618 |
| Yuba | C 2 | Marysville | 636 | 9,636 | 8,620 |
