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Welcome to Alameda County ...

Time Zone: Alameda County lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time.

The community of Oakland is the Seat for Alameda County.

Alameda County was founded March 25, 1853. Alameda was created by taking area from Contra Costa and Santa Clara Counties.

From the Census Estimates for 2019, <1> Alameda had a population of 1,671,329 people. This is an increase of 10.47% since the last Census (which gave a population of 1,512,986 people in 2010).

At the time of the 2010 Census, Alameda represented 4.06% of the total population of California.

Below are some of the communities located in Alameda County:

  • Alameda
    (8 miles [12.9 km] to the west)
    • Alameda is located in Alameda County (CA)
    • Jump to our Gazetteer entry for Alameda
    • Population from the 2020 Census: 78,841 people
    • Jump to TripAdvisor's Tourism page for Alameda <2>
  • Albany
    (16 miles [25.7 km] to the northwest)
    • Albany is located in Alameda County (CA)
    • Jump to our Gazetteer entry for Albany
    • Population from the 2020 Census: 20,031 people
    • Jump to TripAdvisor's Tourism page for Albany <2>
  • Berkeley
    (14 miles [22.5 km] to the northwest)
    • Berkeley is located in Alameda County (CA)
    • Jump to our Gazetteer entry for Berkeley
    • Population from the 2020 Census: 122,726 people
    • Jump to TripAdvisor's Tourism page for Berkeley <2>
  • Dublin
    (9 miles [14.5 km] to the east)
    • Dublin is located in Alameda County (CA)
    • Jump to our Gazetteer entry for Dublin
    • Population from the 2020 Census: 66,936 people
    • Jump to TripAdvisor's Tourism page for Dublin <2>
  • Emeryville
    (13 miles [20.9 km] to the northwest)
  • Fremont
    (12 miles [19.3 km] to the southeast)
    • Fremont is located in Alameda County (CA)
    • Jump to our Gazetteer entry for Fremont
    • Population from the 2020 Census: 234,569 people
    • Jump to TripAdvisor's Tourism page for Fremont <2>
  • Hayward
    (3 miles [4.8 km] to the south)
    • Hayward is located in Alameda County (CA)
    • Jump to our Gazetteer entry for Hayward
    • Population from the 2020 Census: 157,966 people
    • Jump to TripAdvisor's Tourism page for Hayward <2>
  • Livermore
    (18 miles [29 km] to the east)
  • Continue List   (6 more) ...
    • Newark
      (13 miles [20.9 km] to the south)
      • Newark is located in Alameda County (CA)
      • Jump to our Gazetteer entry for Newark
      • Population from the 2020 Census: 49,699 people
      • Jump to TripAdvisor's Tourism page for Newark <2>
    • Oakland
      (11 miles [17.7 km] to the northwest)
      • Oakland is located in Alameda County (CA)
      • Jump to our Gazetteer entry for Oakland
      • Population from the 2020 Census: 424,891 people
      • Jump to TripAdvisor's Tourism page for Oakland <2>
    • Piedmont
      (10 miles [16.1 km] to the northwest)
      • Piedmont is located in Alameda County (CA)
      • Jump to our Gazetteer entry for Piedmont
      • Population from the 2020 Census: 11,335 people
      • Jump to TripAdvisor's Tourism page for Piedmont <2>
    • Pleasanton
      (12 miles [19.3 km] to the east)
    • San Leandro
      (3 miles [4.8 km] to the west)
    • Union City
      (9 miles [14.5 km] to the south)

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census. For more information, please visit the U.S. Census Bureau.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.