California
As of the census of 2000, there were 33871648 people, 11502870 households, and 7920049 families living in the state. The population density was 217.2 people per square mile (83.86/kmē), it would be the 12th most densely populated state in the U.S. state of America. There were 12214549 housing units at an average density of 78.3 per square mile (30.23/kmē). The average household size was 2.87 persons, and the average family size was 3.43 persons. In the state the population was spread out, with 27.3% under the age of 18, 9.9% from 18 to 24, 31.6% from 25 to 44, 20.5% from 45 to 64, and 10.6% who were 65 or older. For every 100 females there were 99.3 males. For every 100 females age 18 and over, there were 97.1 males. The median age is 33.3 years, the median age of male residents at 32.2 and the median age of female residents at 34.4. According to July 2008 Census Bureau estimates, the population of the state is 33871648, The racial or ethnic makeup of the state was 20170059 White, 2263882 Black or African American, 333346 American Indian, 3697513 Asian, 116961 Native Hawaiian, 1607646 from two or more races and 5682241 Ohter races.
The median income for a household in the state was $47493, it is the eighth highest state by median household income in the U.S. state of America. The median income for a family in the state was $53025, it is the 15th highest state by median family income in the U.S. state of America. The per capita income for the state was $22711, making it the 13th highest state by per capita income in United States. The median income was $25026, The median income for males was $29593 versus $20544 for females. The Bureau of Economic Analysis estimates that the total GDP in 2008 was $1846.8 billion, making it the wealthiest state by gross domestic product among the United States. Per capita personal income in 2008 was $42064.
In 2000, 10129990 pupils and students, of which 49.95% are male and 50.05% are female, 29.91% of the total population, are in the education system. Of which, percentage of enrollment student are in, 5.4% nursery or pri school, 5.47% kindergarten, 42.94% elementary school, 20.95% high school and 25.24% College graduate school.
| Rank | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income | Family Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Alameda County | 821.15 | 737.57 | 83.57 | 1443741 | 1957.4 | 26680 | 55946 | 65857 |
| 2 | Alpine County | 743.19 | 738.62 | 4.57 | 1208 | 1.6 | 24431 | 41875 | 50250 |
| 3 | Amador County | 604.69 | 592.97 | 11.73 | 35100 | 59.2 | 22412 | 42280 | 51226 |
| 4 | Butte County | 1677.11 | 1639.49 | 37.62 | 203171 | 123.9 | 17517 | 31924 | 41010 |
| 5 | Calaveras County | 1036.84 | 1020.04 | 16.81 | 40554 | 39.8 | 21420 | 41022 | 47379 |
| 6 | Colusa County | 1156.22 | 1150.68 | 5.54 | 18804 | 16.3 | 14730 | 35062 | 40138 |
| 7 | Contra Costa County | 802.15 | 719.95 | 82.2 | 948816 | 1317.9 | 30615 | 63675 | 73039 |
| 8 | Del Norte County | 1229.75 | 1007.81 | 221.94 | 27507 | 27.3 | 14573 | 29642 | 36056 |
| 9 | El Dorado County | 1788.1 | 1710.85 | 77.25 | 156299 | 91.4 | 25560 | 51484 | 60250 |
| 10 | Fresno County | 6017.42 | 5962.73 | 54.7 | 799407 | 134.1 | 15495 | 34725 | 38455 |
| 11 | Glenn County | 1327.16 | 1314.79 | 12.36 | 26453 | 20.1 | 14069 | 32107 | 37023 |
| 12 | Humboldt County | 4052.22 | 3572.49 | 479.74 | 126518 | 35.4 | 17203 | 31226 | 39370 |
| 13 | Imperial County | 4481.73 | 4174.73 | 307 | 142361 | 34.1 | 13239 | 31870 | 35226 |
| 14 | Inyo County | 10226.98 | 10203.1 | 23.88 | 17945 | 1.8 | 19639 | 35006 | 44970 |
| 15 | Kern County | 8161.42 | 8140.96 | 20.46 | 661645 | 81.3 | 15760 | 35446 | 39403 |
| 16 | Kings County | 1391.49 | 1390.99 | 0.5 | 129461 | 93.1 | 15848 | 35749 | 38111 |
| 17 | Lake County | 1329.48 | 1257.96 | 71.52 | 58309 | 46.4 | 16825 | 29627 | 35818 |
| 18 | Lassen County | 4720.37 | 4557.27 | 163.1 | 33828 | 7.4 | 14749 | 36310 | 43398 |
| 19 | Los Angeles County | 4752.32 | 4060.87 | 691.45 | 9519338 | 2344.2 | 20683 | 42189 | 46452 |
| 20 | Madera County | 2153.32 | 2135.86 | 17.46 | 123109 | 57.6 | 14682 | 36286 | 39226 |
| 21 | Marin County | 828.2 | 519.8 | 308.39 | 247289 | 475.7 | 44962 | 71306 | 88934 |
| 22 | Mariposa County | 1462.79 | 1451.12 | 11.67 | 17130 | 11.8 | 18190 | 34626 | 42655 |
| 23 | Mendocino County | 3878.14 | 3508.97 | 369.17 | 86265 | 24.6 | 19443 | 35996 | 42168 |
| 24 | Merced County | 1971.87 | 1928.69 | 43.18 | 210554 | 109.2 | 14257 | 35532 | 38009 |
| 25 | Modoc County | 4203.37 | 3944.1 | 259.28 | 9449 | 2.4 | 17285 | 27522 | 35978 |
| 26 | Mono County | 3131.8 | 3044.4 | 87.4 | 12853 | 4.2 | 23422 | 44992 | 50487 |
| 27 | Monterey County | 3771.07 | 3321.95 | 449.12 | 401762 | 120.9 | 20165 | 48305 | 51169 |
| 28 | Napa County | 788.27 | 753.73 | 34.53 | 124279 | 164.9 | 26395 | 51738 | 61410 |
| 29 | Nevada County | 974.49 | 957.61 | 16.88 | 92033 | 96.1 | 24007 | 45864 | 52697 |
| 30 | Orange County | 947.98 | 789.4 | 158.57 | 2846289 | 3605.6 | 25826 | 58820 | 64611 |
| 31 | Placer County | 1502.78 | 1404.37 | 98.41 | 248399 | 176.9 | 27963 | 57535 | 65858 |
| 32 | Plumas County | 2613.48 | 2553.69 | 59.78 | 20824 | 8.2 | 19391 | 36351 | 46119 |
| 33 | Riverside County | 7303.13 | 7207.37 | 95.76 | 1545387 | 214.4 | 18689 | 42887 | 48409 |
| 34 | Sacramento County | 995.48 | 965.65 | 29.83 | 1223499 | 1267 | 21142 | 43816 | 50717 |
| 35 | San Benito County | 1390.73 | 1389.06 | 1.68 | 53234 | 38.3 | 20932 | 57469 | 60665 |
| 36 | San Bernardino County | 20105.32 | 20052.5 | 52.82 | 1709434 | 85.2 | 16856 | 42066 | 46574 |
| 37 | San Diego County | 4525.52 | 4199.89 | 325.62 | 2813833 | 670 | 22926 | 47067 | 53438 |
| 38 | San Francisco County | 231.92 | 46.69 | 185.22 | 776733 | 16634.4 | 34556 | 55221 | 63545 |
| 39 | San Joaquin County | 1426.25 | 1399.28 | 26.97 | 563598 | 402.8 | 17365 | 41282 | 46919 |
| 40 | San Luis Obispo County | 3615.54 | 3304.32 | 311.22 | 246681 | 74.7 | 21864 | 42428 | 52447 |
| 41 | San Mateo County | 741.01 | 449.07 | 291.95 | 707161 | 1574.7 | 36045 | 70819 | 80737 |
| 42 | Santa Barbara County | 3789.08 | 2737.01 | 1052.07 | 399347 | 145.9 | 23059 | 46677 | 54042 |
| 43 | Santa Clara County | 1304.01 | 1290.69 | 13.32 | 1682585 | 1303.6 | 32795 | 74335 | 81717 |
| 44 | Santa Cruz County | 607.16 | 445.24 | 161.92 | 255602 | 574.1 | 26396 | 53998 | 61941 |
| 45 | Shasta County | 3847.44 | 3785.19 | 62.24 | 163256 | 43.1 | 17738 | 34335 | 40491 |
| 46 | Sierra County | 961.97 | 953.38 | 8.59 | 3555 | 3.7 | 18815 | 35827 | 42756 |
| 47 | Siskiyou County | 6347.46 | 6286.78 | 60.68 | 44301 | 7 | 17570 | 29530 | 36890 |
| 48 | Solano County | 906.67 | 829.19 | 77.48 | 394542 | 475.8 | 21731 | 54099 | 60597 |
| 49 | Sonoma County | 1768.23 | 1575.88 | 192.35 | 458614 | 291 | 25724 | 53076 | 61921 |
| 50 | Stanislaus County | 1514.67 | 1493.79 | 20.88 | 446997 | 299.2 | 16913 | 40101 | 44703 |
| 51 | Sutter County | 608.58 | 602.54 | 6.04 | 78930 | 131 | 17428 | 38375 | 44330 |
| 52 | Tehama County | 2962.27 | 2950.99 | 11.28 | 56039 | 19 | 15793 | 31206 | 37277 |
| 53 | Trinity County | 3207.54 | 3178.61 | 28.93 | 13022 | 4.1 | 16868 | 27711 | 34343 |
| 54 | Tulare County | 4839.09 | 4823.97 | 15.12 | 368021 | 76.3 | 14006 | 33983 | 36297 |
| 55 | Tuolumne County | 2274.34 | 2235.41 | 38.93 | 54501 | 24.4 | 21015 | 38725 | 44327 |
| 56 | Ventura County | 2208.2 | 1845.3 | 362.9 | 753197 | 408.2 | 24600 | 59666 | 65285 |
| 57 | Yolo County | 1022.89 | 1013.27 | 9.62 | 168660 | 166.5 | 19365 | 40769 | 51623 |
| 58 | Yuba County | 643.73 | 630.69 | 13.04 | 60219 | 95.5 | 14124 | 30460 | 34103 |