Valona is an unincorporated community in Contra Costa County, California, United States. It is located in the bluffs above Crockett, 5.5 miles (9 km) west-northwest of Martinez, at an elevation of 62 feet (19 m). The similar village of Selby is located nearby. The ZIP Code is 94525. The community is inside area code 510.
- ^ a b c d e "Valona (Contra Costa County, California)". Geographic Names Information System. United States Geological Survey. Retrieved May 10, 2014.
- ^ a b "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. Clovis, Calif.: Word Dancer Press. p. 718. ISBN 1-884995-14-4.