Contra Costa
State: California StateCounty Population: 801,567
Total land area: 289.8 Sq. Mi.
Cities:
- Alamo
- Antioch
- Bay Point
- Bethel Island
- Concord
- Crockett
- Danville
- Discovery Bay
- East Richmond Heights
- El Sobrante
- Hercules
- Kensington
- Lafayette
- Moraga
- Oakley
- Orinda
- Pinole
- Pittsburg
- Pleasant Hill
- Richmond
- Rodeo
- Rollingwood
- San Pablo
- San Ramon
- Tara Hills
- Vine Hill
- Waldon
- Walnut Creek