The county of Contra Costa is located in California and was founded in February 18, 1850. There are 1,049,025 residents in Contra Costa who have access to courthouses in Concord, Martinez, Pittsburg, Richmond, Walnut Creek. In general, each county has a full set of courts, from traffic court to superior and appellate court; supreme courts are usually located in the state capital. California is part of the 9th federal circuit court as well.
There are 122,067 residents in Concordwhich is 30.5 square miles and 75ft above sea level. It was settled in February 8, 1905 and is governed by a City Council/City Manager local government.
There are 35,824 residents in Martinezwhich is 13.6 square miles and 23ft above sea level. It was settled in April 1, 1876.
There are 63,264 residents in Pittsburgwhich is 19.2 square miles and 26ft above sea level. It was settled in June 25, 1903 and is governed by a General Law City local government.
There are 103,701 residents in Richmondwhich is 52.5 square miles and 46ft above sea level. It was settled in August 7, 1905 and is governed by a Council-Manager local government.
There are 64,173 residents in Walnut Creekwhich is 19.8 square miles and 131ft above sea level. It was settled in 1849, ''walnut-creek.org'', retrieved on October 8, 2007 and is governed by a General Law local government.