Table 30
Density of Auto Ownership by Bay Area County, 1996

Standard Unit Land Use

County	Total Acres	Residential Acres	Total Registered Automobiles	Automobiles per Total Acre	Automobiles per Residential Acre
San Francisco	29,873	16,024	339,892	11.4	21.2
San Mateo	285,451	40,677	520,395	1.8	12.8
Santa Clara	825,386	110,515	1,034,902	1.3	9.4
Alameda	473,331	77,733	772,898	1.6	9.9
Contra Costa	462,204	88,685	543,703	1.2	6.1
Solano	533,017	27,043	198,598	0.4	7.3
Napa	481,205	12,636	71,117	0.1	5.6
Sonoma	1,013,551	64,474	257,883	0.3	4.0
Marin	332,743	30,644	170,753	0.5	5.6
Bay Area	4,436,761	468,430	3,910,141	0.9	8.3

Metric Unit Land Use

County	Total Sq.Km.	Residential Sq. Km.	Total Registered Automobiles	Automobiles per Total Sq.Km.	Automobiles per Residential Sq.Km.
San Francisco	121	65	339,892	2,811.6	5,241.4
San Mateo	1,155	165	520,395	450.5	3,161.4
Santa Clara	3,340	447	1,034,902	309.8	2,314.0
Alameda	1,915	315	772,898	403.5	2,457.0
Contra Costa	1,870	359	543,703	290.7	1,515.0
Solano	2,157	109	198,598	92.1	1,814.7
Napa	1,947	51	71,117	36.5	1,390.8
Sonoma	4,102	261	257,883	62.9	988.4
Marin	1,347	124	170,753	126.8	1,376.9
Bay Area	17,955	1,896	3,910,141	217.8	2,062.7

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Note:
Sq. Km. = Square Kilometers
1 Sq. Km. = 247.1 Acre

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Last Updated: SEP1897, CPurvis
Back to Report: Auto Ownership in the San Francisco Bay Area: 1930-2010