Contra Costa County – 94520 – Concord – CA – 22/35

Cities: Concord, CA (67.14%), Clyde, CA (1.33%), Bay Point, CA (1.30%), Pleasant Hill, CA (0.03%), Pacheco, CA (0.00%)
County: Contra Costa County, CA

Estimated zip code population in 2011: 36,321
Zip code population in 2010: 37,208
Zip code population in 2000: 36,174