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

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 .
    Counties USA: A Directory of United States Counties, 3rd Edition. © 2006 by Omnigraphics, Inc.
    References in periodicals archive ?
    Pittsburg PD and CCC Sheriff carrying out evacs," Contra Costa County Fire( tweeted Thursday.
    Investigators from the Contra Costa District Attorney's Office, Department of Industrial Relations' Labor Commissioner's Office, and Employment Development Department conducted surprise inspections in June and July at Contra Costa County restaurants suspected of evading the obligation to provide workers' comp insurance to employees.
    He is also a member of the Contra Costa County Bar Association, the American Academy of Estate Planning Attorneys, and the Christian Legal Society.
    Carousel was contracted a month into Contra Costa County's selection process, once the company settled on a favored vendor and system.
    californiense larvae from three perennial stock ponds within the Los Vaqueros watershed in Contra Costa County, California have previously been reported (Alvarez, 2004).
    WEST COUNTY DIGS is a network of teachers, community members, students, and school administrators working to improve the success and sustainability of school gardening programs in West Contra Costa County, CA.
    First Northern Bank, an independent community bank headquartered in Solano County since 1910, serves Solano, Yolo, Sacramento, Placer, Contra Costa County and the west slope of El Dorado County.
    Contra Costa County prosecutors say they expect to announce if they will file criminal charges in the coming days.
    First GWSS infestation is found outside the generally infested Southern California area, in Contra Costa County; eradication efforts begin.
    The alleged crimes--which include storing cyanide and other toxic substances in an unpermitted, 6,900-gallon tank at the Richmond site--occurred over a two-year period beginning in March 2011, according to a criminal complaint filed by the Contra Costa County district attorney's office.
    "They were decontaminated in a shower and have been transported to a local medical facility."Lacey Friedman, a Contra Costa County hazardous materials specialist, said in a telephone interview that one of the workers has been released while the second remains in a hospital under observation.An initial description of the accident released by the Contra Costa County Hazardous Materials Programme said one of the workers was "saturated" by the acid.On February 12, an alkylation unit involved in gasoline production was shut at the 166,000-barrel-per-day (bpd) Martinez refinery after a sulphuric acid release injured two workers.

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