Table 2
Households by Vehicle Availability – 1960 - 2000
1960 - 2000 Decennial Censuses
                     
No % of One % of Two % of Three-Plus % of Total
County Year Vehicle Total Vehicle Total Vehicles Total Vehicles Total Households
1960 54,827 18.6% 162,752 55.1% 68,373 23.1% 9,415 3.2% 295,367
1970 60,997 16.7% 170,535 46.7% 111,578 30.6% 21,983 6.0% 365,093
Alameda 1980 60,955 14.3% 161,652 37.9% 129,851 30.5% 73,634 17.3% 426,092
1990 58,711 12.2% 165,050 34.4% 165,918 34.6% 89,839 18.7% 479,518
  2000 57,287 10.9% 182,586 34.9% 189,075 36.1% 94,418 18.0% 523,366
1960 10,262 8.7% 63,862 54.2% 38,885 33.0% 4,849 4.1% 117,858
Contra 1970 13,116 7.6% 72,007 41.6% 71,768 41.5% 16,060 9.3% 172,951
Costa 1980 16,271 6.7% 77,498 32.1% 91,406 37.8% 56,359 23.3% 241,534
1990 19,129 6.4% 87,817 29.2% 123,621 41.2% 69,721 23.2% 300,288
  2000 22,353 6.5% 104,978 30.5% 140,655 40.9% 76,143 22.1% 344,129
1960 3,967 9.0% 24,877 56.3% 14,083 31.9% 1,268 2.9% 44,195
1970 4,619 6.9% 29,647 44.1% 27,780 41.3% 5,220 7.8% 67,266
Marin 1980 4,819 5.4% 32,722 36.9% 34,063 38.4% 17,119 19.3% 88,723
1990 4,879 5.1% 31,404 33.1% 39,311 41.4% 19,412 20.4% 95,006
  2000 5,094 5.1% 35,175 34.9% 42,530 42.3% 17,851 17.7% 100,650
1960 1,819 9.6% 11,029 58.5% 5,465 29.0% 554 2.9% 18,867
1970 2,550 10.2% 10,938 43.6% 9,313 37.1% 2,297 9.2% 25,098
Napa 1980 2,564 7.0% 11,744 32.1% 12,374 33.8% 9,942 27.1% 36,624
1990 2,741 6.6% 12,780 30.9% 16,366 39.6% 9,425 22.8% 41,312
  2000 2,803 6.2% 14,688 32.4% 18,052 39.8% 9,859 21.7% 45,402
1960 122,847 42.1% 136,689 46.8% 27,263 9.3% 5,171 1.8% 291,970
San 1970 116,816 39.6% 133,633 45.3% 38,371 13.0% 6,354 2.2% 295,174
Francisco 1980 103,462 34.6% 127,131 42.5% 51,869 17.4% 16,494 5.5% 298,956
1990 93,806 30.7% 127,271 41.6% 64,379 21.1% 20,128 6.6% 305,584
  2000 94,178 28.6% 138,526 42.0% 73,017 22.1% 23,979 7.3% 329,700
1960 10,723 7.9% 75,382 55.8% 43,807 32.4% 5,259 3.9% 135,171
San 1970 13,871 7.5% 83,622 45.2% 71,859 38.8% 15,676 8.5% 185,028
Mateo 1980 14,338 6.4% 82,065 36.4% 82,946 36.8% 45,852 20.4% 225,201
1990 14,683 6.1% 78,396 32.4% 93,527 38.7% 55,308 22.9% 241,914
  2000 15,507 6.1% 80,879 31.8% 101,478 39.9% 56,239 22.1% 254,103
1960 16,216 8.8% 99,770 54.0% 59,952 32.4% 8,976 4.9% 184,914
Santa 1970 22,224 6.9% 129,631 40.2% 139,888 43.3% 31,039 9.6% 322,782
Clara 1980 25,213 5.5% 146,886 32.0% 171,326 37.4% 115,094 25.1% 458,519
1990 27,326 5.3% 147,789 28.4% 210,612 40.5% 134,453 25.8% 520,180
  2000 31,978 5.7% 164,212 29.0% 231,806 41.0% 137,867 24.4% 565,863
1960 4,260 11.1% 24,238 63.0% 8,776 22.8% 1,179 3.1% 38,453
1970 4,505 8.8% 25,602 50.1% 17,588 34.4% 3,425 6.7% 51,120
Solano 1980 5,398 6.7% 26,915 33.5% 29,148 36.2% 18,965 23.6% 80,426
1990 6,516 5.7% 32,190 28.4% 47,208 41.6% 27,515 24.3% 113,429
  2000 8,566 6.6% 37,921 29.1% 52,087 39.9% 31,829 24.4% 130,403
1960 6,832 14.5% 25,732 54.5% 12,767 27.1% 1,860 3.9% 47,191
1970 7,189 10.6% 32,183 47.4% 23,094 34.0% 5,395 8.0% 67,861
Sonoma 1980 7,725 6.7% 38,997 34.1% 39,039 34.1% 28,713 25.1% 114,474
1990 8,741 5.9% 46,602 31.3% 59,959 40.2% 33,709 22.6% 149,011
  2000 9,921 5.8% 54,446 31.6% 69,169 40.1% 38,867 22.5% 172,403
1960 231,753 19.7% 624,331 53.2% 279,371 23.8% 38,531 3.3% 1,173,986
Bay 1970 245,887 15.8% 687,798 44.3% 511,239 32.9% 107,449 6.9% 1,552,373
Area 1980 240,745 12.2% 705,610 35.8% 642,022 32.6% 382,172 19.4% 1,970,549
1990 236,532 10.5% 729,299 32.5% 820,901 36.5% 459,510 20.5% 2,246,242
  2000 247,687 10.0% 813,411 33.0% 917,869 37.2% 487,052 19.8% 2,466,019
Sources:   U.S. Bureau of the Census, Decennial Censuses – 1960-1990