Table 4 |
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Workers by Means of Transportation to Work - 1980 - 2000 |
1980 - 2000 Decennial Censuses |
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County |
Year | Drive | | | | | Work | Total |
of Residence |
% of Total | Alone | Carpool | Transit | Walk | Other | at Home | Workers |
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| 1980 | 311,329 | 80,722 | 63,326 | 24,059 | 17,247 | 8,767 | 505,450 |
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% of Total | 61.60% | 16.00% | 12.50% | 4.80% | 3.40% | 1.70% | 100.00% |
| 1990 | 422,775 | 80,773 | 63,138 | 25,136 | 16,483 | 24,886 | 633,191 |
Alameda |
% of Total | 66.80% | 12.80% | 10.00% | 4.00% | 2.60% | 3.90% | 100.00% |
| 2000 | 450,496 | 93,652 | 72,174 | 21,919 | 16,728 | 23,941 | 678,910 |
| % of Total | 66.40% | 13.80% | 10.60% | 3.20% | 2.50% | 3.50% | 100.00% |
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| 1980 | 199,707 | 53,165 | 25,794 | 6,851 | 7,603 | 5,634 | 298,754 |
| % of Total | 66.80% | 17.80% | 8.60% | 2.30% | 2.50% | 1.90% | 100.00% |
Contra | 1990 | 286,754 | 55,488 | 31,344 | 7,371 | 6,563 | 13,653 | 401,173 |
Costa | % of Total | 71.50% | 13.80% | 7.80% | 1.80% | 1.60% | 3.40% | 100.00% |
| 2000 | 310,286 | 59,769 | 39,652 | 6,631 | 6,694 | 18,976 | 442,008 |
| % of Total | 70.20% | 13.50% | 9.00% | 1.50% | 1.50% | 4.30% | 100.00% |
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| 1980 | 69,783 | 19,349 | 13,500 | 4,220 | 5,022 | 3,814 | 115,688 |
| % of Total | 60.30% | 16.70% | 11.70% | 3.60% | 4.30% | 3.30% | 100.00% |
| 1990 | 82,714 | 15,535 | 12,899 | 3,739 | 2,031 | 8,162 | 125,080 |
Marin | % of Total | 66.10% | 12.40% | 10.30% | 3.00% | 1.60% | 6.50% | 100.00% |
| 2000 | 82,898 | 13,597 | 12,797 | 3,835 | 2,392 | 11,127 | 126,646 |
| % of Total | 65.50% | 10.70% | 10.10% | 3.00% | 1.90% | 8.80% | 100.00% |
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| 1980 | 28,655 | 7,186 | 750 | 2,484 | 1,531 | 1,084 | 41,690 |
| % of Total | 68.70% | 17.20% | 1.80% | 6.00% | 3.70% | 2.60% | 100.00% |
| 1990 | 38,766 | 6,605 | 570 | 2,619 | 1,121 | 1,892 | 51,573 |
Napa | % of Total | 75.20% | 12.80% | 1.10% | 5.10% | 2.20% | 3.70% | 100.00% |
| 2000 | 41,698 | 8,519 | 803 | 2,378 | 1,080 | 2,915 | 57,393 |
| % of Total | 72.70% | 14.80% | 1.40% | 4.10% | 1.90% | 5.10% | 100.00% |
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| 1980 | 113,724 | 42,028 | 129,683 | 36,823 | 6,829 | 7,540 | 336,627 |
| % of Total | 33.80% | 12.50% | 38.50% | 10.90% | 2.00% | 2.20% | 100.00% |
San | 1990 | 147,187 | 43,925 | 128,160 | 37,611 | 10,947 | 14,479 | 382,309 |
Francisco | % of Total | 38.50% | 11.50% | 33.50% | 9.80% | 2.90% | 3.80% | 100.00% |
| 2000 | 169,508 | 45,152 | 130,311 | 39,192 | 15,014 | 19,376 | 418,553 |
| % of Total | 40.50% | 10.80% | 31.10% | 9.40% | 3.60% | 4.60% | 100.00% |
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| 1980 | 210,558 | 50,577 | 24,137 | 8,093 | 7,561 | 4,907 | 305,833 |
| % of Total | 68.80% | 16.50% | 7.90% | 2.60% | 2.50% | 1.60% | 100.00% |
San | 1990 | 251,218 | 45,104 | 25,788 | 8,858 | 6,059 | 9,532 | 346,559 |
Mateo | % of Total | 72.50% | 13.00% | 7.40% | 2.60% | 1.70% | 2.80% | 100.00% |
| 2000 | 256,066 | 45,367 | 26,029 | 7,609 | 6,180 | 12,845 | 354,096 |
| % of Total | 72.30% | 12.80% | 7.40% | 2.10% | 1.70% | 3.60% | 100.00% |
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| 1980 | 470,652 | 107,639 | 20,115 | 16,757 | 24,104 | 10,310 | 649,577 |
| % of Total | 72.50% | 16.60% | 3.10% | 2.60% | 3.70% | 1.60% | 100.00% |
Santa | 1990 | 618,995 | 98,163 | 23,727 | 16,509 | 19,225 | 19,986 | 796,605 |
Clara | % of Total | 77.70% | 12.30% | 3.00% | 2.10% | 2.40% | 2.50% | 100.00% |
| 2000 | 641,113 | 101,188 | 29,118 | 14,786 | 16,854 | 25,868 | 828,927 |
| % of Total | 77.30% | 12.20% | 3.50% | 1.80% | 2.00% | 3.10% | 100.00% |
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| 1980 | 65,650 | 23,232 | 1,879 | 4,298 | 3,599 | 1,353 | 100,011 |
| % of Total | 65.60% | 23.20% | 1.90% | 4.30% | 3.60% | 1.40% | 100.00% |
| 1990 | 114,233 | 29,320 | 3,604 | 3,916 | 3,460 | 4,180 | 158,713 |
Solano | % of Total | 72.00% | 18.50% | 2.30% | 2.50% | 2.20% | 2.60% | 100.00% |
| 2000 | 127,896 | 30,973 | 4,662 | 2,784 | 2,815 | 5,441 | 174,571 |
| % of Total | 73.30% | 17.70% | 2.70% | 1.60% | 1.60% | 3.10% | 100.00% |
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| 1980 | 88,591 | 20,829 | 4,093 | 5,422 | 4,391 | 4,358 | 127,684 |
| % of Total | 69.40% | 16.30% | 3.20% | 4.20% | 3.40% | 3.40% | 100.00% |
| 1990 | 142,074 | 24,760 | 4,351 | 6,209 | 3,721 | 9,316 | 190,431 |
Sonoma | % of Total | 74.60% | 13.00% | 2.30% | 3.30% | 2.00% | 4.90% | 100.00% |
| 2000 | 168,134 | 28,283 | 5,507 | 6,929 | 3,848 | 12,246 | 224,947 |
| % of Total | 74.70% | 12.60% | 2.40% | 3.10% | 1.70% | 5.40% | 100.00% |
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| 1980 | 1,558,649 | 404,727 | 283,277 | 109,007 | 77,887 | 47,767 | 2,481,314 |
| % of Total | 62.80% | 16.30% | 11.40% | 4.40% | 3.10% | 1.90% | 100.00% |
Bay | 1990 | 2,104,716 | 399,673 | 293,581 | 111,968 | 69,610 | 106,086 | 3,085,634 |
Area | % of Total | 68.20% | 13.00% | 9.50% | 3.60% | 2.30% | 3.40% | 100.00% |
| 2000 | 2,248,095 | 426,500 | 321,053 | 106,063 | 71,605 | 132,735 | 3,306,051 |
| % of Total | 68.00% | 12.90% | 9.70% | 3.20% | 2.20% | 4.00% | 100.00% |
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Sources: U.S. Bureau of the Census, Decennial Censuses - 1980, 1990, 2000 |
Summary Tape File 3A (1980-1990) and Demographic Profile 2, 3, 4 (2000) |
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