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Public
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Census
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Subject
Planning and Cadastral
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Place
Contra Costa County (Calif.)
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Year
1990
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1. Census Places, 1990 - San Francisco Bay Area, California
1990. California. Metropolitan Transportation Commission. This polygon shapefile contains the Census places for the state based as of January 1, 1990. Places, for the reporting of decennial census data, in... California. Metropolitan Transportation Commission.