Contra Costa County

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Contra Costa County, California

651 Pine St 3rd Fl
Martinez, CA 94553
Phone: (925) 335-1080
Fax: (925) 335-1098
www.co.contra-costa.ca.us

On San Pablo Bay, E of San Francisco; original county; organized Feb 18, 1850 (prior to statehood). Name Origin: From Spanish 'opposite coast' designating the coast opposite Marin County, north of San Francisco

Area (sq mi):: 802.15 (land 719.95; water 82.20) Population per square mile: 1413.70
Population 2005: 1,017,787 State rank: 9 Population change: 2000-20005 7.30%; 1990-2000 18.10% Population 2000: 948,816 (White 57.90%; Black or African American 9.40%; Hispanic or Latino 17.70%; Asian 11.00%; Other 14.20%). Foreign born: 19.00%. Median age: 36.40
Income 2000: per capita $30,615; median household $63,675; Population below poverty level: 7.60% Personal per capita income (2000-2003): $44,479-$43,957
Unemployment (2004): 5.40% Unemployment change (from 2000): 2.10% Median travel time to work: 34.40 minutes Working outside county of residence: 42.40%
Cities with population over 10,000:
  • Concord (124,328)
  • Richmond (102,318)
  • Antioch (100,923)
  • Walnut Creek (64,822)
  • Pittsburg (62,600)
  • San Ramon (45,616)
  • Danville (42,199)
  • Martinez County seat (36,305)
  • Pleasant Hill (33,529)
  • San Pablo (31,041)
  • Oakley (26,818)
  • Lafayette (24,665)
  • Hercules (23,425)
  • El Cerrito (23,138)
  • Pinole (19,272)
  • Orinda (18,176)
  • Moraga (16,797)
  • Clayton (11,126)

  • See other counties in .
    References in periodicals archive ?
    and Canada including: West Valley - Phoenix, AZ; South Shore - Boston, MA; Contra Costa County, CA and North Toronto, Ontario.
    Dan O'Malley happens to be a retired judge, former prosecutor and current candidate for District Attorney of Contra Costa County, CA .
    OTCBB: CDOC) said today the Company's Underwater Inspection System[TM] (UIS), developed in cooperation with the US Coast Guard, has been purchased by the Sheriff's Office of Contra Costa County, CA.

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