Contra Costa County, California

Contra Costa County, California ni msumba uchoko panji nkhalwe (county pachingelezi) iyo ikusangika mu boma likulu la California mu charu cha United States of America. Boma likulu la California lina tumisumba 58 mukwati mwake (counties).

Category:Maboma gha California
Category:Malo ghamu California
Category:California, United States
Category:Nkhalwe zamu California
Category:California