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Table A-1
Growth in Auto Ownership by Bay Area Counties, 1930-2010

Year Autos
Owned		 Total
Households		 Autos per
Household		 Total
Population		 Autos per
Capita
San Francisco County
1930 152,700 178,600 0.85 634,400 0.24
1940 187,000 206,000 0.91 634,500 0.29
1950 257,800 257,700 1.00 775,400 0.33
1960 294,700 292,000 1.01 740,300 0.40
1970 320,600 295,200 1.09 715,700 0.45
1980 319,900 299,000 1.07 679,000 0.47
1990 326,300 305,600 1.07 724,000 0.45
2000 390,900 323,400 1.21 784,400 0.50
2010 445,000 342,300 1.30 819,000 0.54
San Mateo County
1930 25,200 20,800 1.21 77,400 0.33
1940 43,400 33,500 1.30 111,800 0.39
1950 95,500 71,400 1.34 235,700 0.41
1960 209,400 135,200 1.55 444,400 0.47
1970 334,600 185,000 1.81 557,400 0.60
1980 437,000 225,200 1.94 587,300 0.74
1990 455,600 241,900 1.88 649,600 0.70
2000 531,300 259,500 2.05 713,000 0.75
2010 602,000 275,300 2.19 749,400 0.80
Santa Clara County
1930 55,800 40,200 1.39 145,100 0.38
1940 74,400 51,900 1.43 174,900 0.43
1950 125,600 85,400 1.47 290,500 0.43
1960 302,000 184,900 1.63 642,300 0.47
1970 595,300 322,800 1.84 1,065,300 0.56
1980 855,900 458,500 1.87 1,295,100 0.66
1990 1,037,700 520,200 1.99 1,497,600 0.69
2000 1,250,900 575,900 2.17 1,689,600 0.74
2010 1,425,100 629,500 2.26 1,813,100 0.79
Alameda County
1930 143,800 137,100 1.05 474,900 0.30
1940 189,800 165,200 1.15 513,000 0.37
1950 282,300 238,100 1.19 740,300 0.38
1960 405,100 295,400 1.37 908,200 0.45
1970 566,100 365,100 1.55 1,071,400 0.53
1980 682,800 426,100 1.60 1,105,400 0.62
1990 804,300 479,600 1.68 1,279,200 0.63
2000 930,600 520,500 1.79 1,413,300 0.66
2010 1,112,900 576,000 1.93 1,547,000 0.72
Contra Costa County
1930 25,000 20,700 1.21 78,600 0.32
1940 39,100 29,800 1.31 100,500 0.39
1950 106,000 83,400 1.27 299,000 0.35
1960 183,100 117,900 1.55 409,000 0.45
1970 310,600 173,000 1.80 556,100 0.56
1980 433,300 241,500 1.79 656,400 0.66
1990 572,900 300,300 1.91 803,700 0.71
2000 724,000 358,800 2.02 968,700 0.75
2010 886,100 414,000 2.14 1,104,700 0.80
Solano County
1930 13,700 10,900 1.26 40,800 0.34
1940 19,300 14,600 1.32 49,100 0.39
1950 39,300 30,400 1.29 104,800 0.38
1960 56,100 38,500 1.46 134,600 0.42
1970 91,700 51,100 1.79 172,000 0.53
1980 137,900 80,400 1.72 235,200 0.59
1990 220,200 113,400 1.94 340,400 0.65
2000 299,400 144,900 2.07 454,700 0.66
2010 395,200 179,600 2.20 546,800 0.72
Napa County
1930 7,900 5,700 1.39 22,900 0.34
1940 11,000 7,700 1.43 28,500 0.39
1950 18,300 12,700 1.44 46,600 0.39
1960 28,300 18,900 1.50 65,900 0.43
1970 45,300 25,100 1.80 79,100 0.57
1980 65,300 36,600 1.78 99,200 0.66
1990 78,400 41,300 1.90 110,800 0.71
2000 94,900 47,900 1.98 129,200 0.73
2010 114,900 54,400 2.11 143,300 0.80
Sonoma County
1930 26,500 18,200 1.46 62,200 0.43
1940 30,900 21,600 1.43 69,100 0.45
1950 48,800 32,900 1.48 103,400 0.47
1960 75,200 47,200 1.59 147,400 0.51
1970 122,600 67,900 1.81 204,900 0.60
1980 197,900 114,500 1.73 299,700 0.66
1990 282,500 149,000 1.90 388,200 0.73
2000 367,500 177,900 2.07 468,900 0.78
2010 455,000 208,900 2.18 539,600 0.84
Marin County
1930 11,200 10,600 1.06 41,600 0.27
1940 17,600 13,600 1.29 52,900 0.33
1950 32,900 25,200 1.31 85,600 0.38
1960 66,700 44,200 1.51 146,800 0.45
1970 116,300 67,300 1.73 208,700 0.56
1980 151,800 88,700 1.71 222,600 0.68
1990 175,300 95,000 1.85 230,100 0.76
2000 209,800 103,300 2.03 253,600 0.83
2010 241,300 111,900 2.16 270,300 0.89
San Francisco Bay Area
1930 461,800 442,800 1.04 1,577,900 0.29
1940 612,500 543,900 1.13 1,734,300 0.35
1950 1,006,500 837,200 1.20 2,681,300 0.38
1960 1,620,600 1,174,200 1.38 3,638,900 0.45
1970 2,503,100 1,552,500 1.61 4,630,600 0.54
1980 3,281,800 1,970,500 1.67 5,179,900 0.63
1990 3,953,200 2,246,300 1.76 6,023,600 0.66
2000 4,799,300 2,512,100 1.91 6,875,400 0.70
2010 5,677,500 2,791,900 2.03 7,533,200 0.75
Notes:
Household and population data is from decennial censuses (1930-1990). Future demographics are based on ABAG's Projections '94. Historical auto ownership data (1930-1990) is from the California DMV. Forecast year auto ownership (2000, 2010) were produced by MTC.
Last Updated: SEP1897, CPurvis
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