We can't really tell the exact figure for there are also unregistered cars that time. But there is a record in wiki that back in 1920, there are roughly 7.5 million automobiles in the US.
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I need to know!
Car owners were in the minority in 1920, but growing fast - BTW, gasoline was $3.00/gallon in 1920 (in current value).
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9,546,985,756
as many as you want
As reported in the San Jose Mercury News on 11/9/07 there are 32 million registered cars in California.
67,533
1 million
over 3,000,000
About 25 Million
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