(CO-99-2) County Population Estimates for July 1, 1999 and Population Change for April 1, 1990 to July 1, 1999 (includes revised April 1, 1990 Population Estimates Base) Source: Population Estimates Program, Population Division, U.S. Census Bureau, Washington, DC 20233 Contact: Demographic Call Center Staff, 1-866-758-1060 Internet Release Date: March 9, 2000 4/1/90 Numeric Percent Population Population Population 7/1/99 Estimates Change Change FIPS State/County Code and Area Name Estimate Base 1990-99 1990-99 06 California......................... 33,145,121 29,811,427 3,333,694 11.2 06001 Alameda County, CA................. 1,415,582 1,304,347 111,235 8.5 06003 Alpine County, CA.................. 1,161 1,113 48 4.3 06005 Amador County, CA.................. 34,153 30,039 4,114 13.7 06007 Butte County, CA................... 195,220 182,120 13,100 7.2 06009 Calaveras County, CA............... 40,051 31,998 8,053 25.2 06011 Colusa County, CA.................. 18,844 16,275 2,569 15.8 06013 Contra Costa County, CA............ 933,141 803,731 129,410 16.1 06015 Del Norte County, CA............... 26,477 23,460 3,017 12.9 06017 El Dorado County, CA............... 161,358 125,995 35,363 28.1 06019 Fresno County, CA.................. 763,069 667,479 95,590 14.3 06021 Glenn County, CA................... 26,328 24,798 1,530 6.2 06023 Humboldt County, CA................ 121,358 119,118 2,240 1.9 06025 Imperial County, CA................ 145,287 109,303 35,984 32.9 06027 Inyo County, CA.................... 17,958 18,281 -323 -1.8 06029 Kern County, CA.................... 642,495 544,981 97,514 17.9 06031 Kings County, CA................... 123,241 101,469 21,772 21.5 06033 Lake County, CA.................... 55,405 50,631 4,774 9.4 06035 Lassen County, CA.................. 33,028 27,598 5,430 19.7 06037 Los Angeles County, CA............. 9,329,989 8,863,052 466,937 5.3 06039 Madera County, CA.................. 116,760 88,090 28,670 32.5 06041 Marin County, CA................... 236,768 230,096 6,672 2.9 06043 Mariposa County, CA................ 15,605 14,302 1,303 9.1 06045 Mendocino County, CA............... 84,085 80,345 3,740 4.7 06047 Merced County, CA.................. 200,746 178,403 22,343 12.5 06049 Modoc County, CA................... 9,210 9,678 -468 -4.8 06051 Mono County, CA.................... 10,512 9,956 556 5.6 06053 Monterey County, CA................ 371,756 355,660 16,096 4.5 06055 Napa County, CA.................... 120,962 110,765 10,197 9.2 06057 Nevada County, CA.................. 92,014 78,510 13,504 17.2 06059 Orange County, CA.................. 2,760,948 2,410,668 350,280 14.5 06061 Placer County, CA.................. 239,485 172,796 66,689 38.6 06063 Plumas County, CA.................. 20,370 19,739 631 3.2 06065 Riverside County, CA............... 1,530,653 1,170,413 360,240 30.8 06067 Sacramento County, CA.............. 1,184,586 1,066,789 117,797 11.0 06069 San Benito County, CA.............. 51,276 36,697 14,579 39.7 06071 San Bernardino County, CA.......... 1,669,934 1,418,380 251,554 17.7 06073 San Diego County, CA............... 2,820,844 2,498,016 322,828 12.9 06075 San Francisco County, CA........... 746,777 723,959 22,818 3.2 06077 San Joaquin County, CA............. 563,183 480,628 82,555 17.2 06079 San Luis Obispo County, CA......... 236,953 217,162 19,791 9.1 06081 San Mateo County, CA............... 702,102 649,623 52,479 8.1 06083 Santa Barbara County, CA........... 391,071 369,608 21,463 5.8 06085 Santa Clara County, CA............. 1,647,419 1,497,577 149,842 10.0 06087 Santa Cruz County, CA.............. 245,201 229,734 15,467 6.7 06089 Shasta County, CA.................. 164,530 147,036 17,494 11.9 06091 Sierra County, CA.................. 3,334 3,318 16 0.5 06093 Siskiyou County, CA................ 43,570 43,531 39 0.1 06095 Solano County, CA.................. 385,723 339,469 46,254 13.6 06097 Sonoma County, CA.................. 439,970 388,222 51,748 13.3 06099 Stanislaus County, CA.............. 436,790 370,522 66,268 17.9 06101 Sutter County, CA.................. 78,423 64,409 14,014 21.8 06103 Tehama County, CA.................. 54,012 49,625 4,387 8.8 06105 Trinity County, CA................. 12,927 13,063 -136 -1.0 06107 Tulare County, CA.................. 358,470 311,932 46,538 14.9 06109 Tuolumne County, CA................ 53,764 48,456 5,308 11.0 06111 Ventura County, CA................. 745,063 669,016 76,047 11.4 06113 Yolo County, CA.................... 155,573 141,212 14,361 10.2 06115 Yuba County, CA.................... 59,607 58,234 1,373 2.4