RSS County Anoucements

  • Alameda County News & Information Update 9/12/20 September 12, 2020
    News & Information Update September 12, 2020 Safe & Accessible Voting The Golden State Warriors and the County of Alameda are honored to announce a unique partnership that will provide a safe and accessible voting location in downtown Oakland. The Warriors, in collaboration with the County of Alameda, will open the doors of the team’s […]
  • Alameda County News & Information Update 8/26/20 August 26, 2020
    News & Information Update August 26, 2020 COVID-19 Economic Relief The Alameda County Social Services Agency, in partnership with the County’s Health Care Services and Auditor-Controller Agencies, launched an economic resiliency program on August 24, 2020 to address the COVID-19 public health crisis. The Alameda County Responsibility to Community Health-Pilot Stipend Program, or ARCH, is […]
  • Alameda County News & Information Update 7/15/20 July 15, 2020
    News & Information Update July 15, 2020 County's Variance Approved Alameda County’s attestation to become a variance county was approved today by the State which means: The Oakland Zoo can open for outdoor activities with appropriate safety measures in place. Outdoor dining can resume. Please note that face coverings are required at ALL times and […]

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  • TEST - Sep 18, 2020
    The agenda for TEST dated Friday, 18 September 2020 has been archived. Access it here: http://alamedacounty.granicus.com/AgendaViewer.php?view_id=2&clip_id=6444
  • Personnel Administration Legislation (PAL) Committee - Sep 21, 2020
    The agenda for Personnel Administration Legislation (PAL) Committee dated Monday, 21 September 2020 has been published. Access it here: http://alamedacounty.granicus.com/AgendaViewer.php?view_id=2&event_id=4309
  • Regular Meeting - Sep 22, 2020
    The agenda for Regular Meeting dated Tuesday, 22 September 2020 has been published. Access it here: http://alamedacounty.granicus.com/AgendaViewer.php?view_id=2&event_id=4313

History of Almeda

The county was formed on March 25, 1853, from a large portion of Contra Costa County and a smaller portion of Santa Clara County.

The county seat at the time of the county’s formation was located at Alvarado, now part of Union City. In 1856, it was moved to San Leandro, where the county courthouse was destroyed by the devastating 1868 quake on the Hayward Fault. The county seat was then re-established in the town of Brooklyn from 1872-1875. Brooklyn is now part of Oakland, which has been the county seat since 1873.

Much of what is now considered an intensively urban region, with major cities, was developed as a trolley car suburb of San Francisco in the late 19th and early 20th centuries. The historical progression from Native American tribal lands to Spanish, then Mexican ranches, then to farms, ranches, and orchards, then to multiple city centers and suburbs, is shared with the adjacent and closely associated Contra Costa County.

 

County Seal

County Flag

Land Area

Area

  • Total 821 sq mi (2,130 km2)
  • Land 739 sq mi (1,910 km2)
  • Water 82 sq mi (210 km2)

Highest elevation[2]    3,843 ft (1,171 m)

Population (April 1, 2010)[3]

  • Total 1,510,271
  • Estimate (2017)[4] 1,663,190
  • Density 1,800/sq mi (710/km2)

Population History

Historical population
Census Pop.
1860 8,927
1870 24,237 171.5%
1880 62,976 159.8%
1890 93,864 49.0%
1900 130,197 38.7%
1910 246,131 89.0%
1920 344,177 39.8%
1930 474,883 38.0%
1940 513,011 8.0%
1950 740,315 44.3%
1960 908,209 22.7%
1970 1,073,184 18.2%
1980 1,105,379 3.0%
1990 1,279,182 15.7%
2000 1,443,741 12.9%
2010 1,510,271 4.6%
Est. 2017 1,663,190 [4] 10.1%