Avon, Contra Costa County, California
|County||Contra Costa County|
|Elevation||10 ft (3 m)|
Avon, formerly known as Associated and Marsh, is an unincorporated community in Contra Costa County, California, United States. It is located on the Southern Pacific Railroad 3.5 miles (5.6 km) east-northeast of Martinez, at an elevation of 10 feet (3 m).
A post office operated at Avon from 1912 to 1960. It was originally called Marsh, and in 1913 the name was changed to Associated. The name Marsh was in honor of John Marsh. The name Associated was for the Tidewater Associated Oil Company, owner of the site.
- "Avon (Contra Costa County, California)". Geographic Names Information System. United States Geological Survey. Retrieved May 10, 2014.
- "FIPS55 Data: California". FIPS55 Data. United States Geological Survey. February 23, 2006. Retrieved May 10, 2014.
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Quill Driver Books. p. 597. ISBN 9781884995149.
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