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Home >> State of California >> Placer County  

Welcome to Placer County ...

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

The community of Auburn is the Seat for Placer County.

Placer County was founded in 1851. Placer was created by taking area from Sutter and Yuba Counties.

From the Census Estimates for 2019, <1> Placer had a population of 398,329 people. This is an increase of 13.8% since the last Census (which gave a population of 350,021 people in 2010).

At the time of the 2010 Census, Placer represented 0.94% of the total population of California.

Below are some of the communities located in Placer County:

  • Auburn
    (8 miles [12.9 km] to the southwest)
    • Jump to our Gazetteer entry for Auburn
    • Auburn is located in Placer County (CA)
    • Population from the 2020 Census: 14,205 people
    • Jump to TripAdvisor's Tourism page for Auburn <2>
  • Colfax
    (8 miles [12.9 km] to the north)
    • Jump to our Gazetteer entry for Colfax
    • Colfax is located in Placer County (CA)
    • Population from the 2020 Census: 2,009 people
    • Jump to TripAdvisor's Tourism page for Colfax <2>
  • Lincoln
    (19 miles [30.6 km] to the west)
    • Jump to our Gazetteer entry for Lincoln
    • Lincoln is located in Placer County (CA)
    • Population from the 2020 Census: 48,996 people
    • Jump to TripAdvisor's Tourism page for Lincoln <2>
  • Loomis
    (16 miles [25.7 km] to the southwest)
    • Jump to our Gazetteer entry for Loomis
    • Loomis is located in Placer County (CA)
    • Population from the 2020 Census: 6,844 people
    • Jump to TripAdvisor's Tourism page for Loomis <2>
  • Rocklin
    (19 miles [30.6 km] to the southwest)
    • Jump to our Gazetteer entry for Rocklin
    • Rocklin is located in Placer County (CA)
    • Population from the 2020 Census: 70,159 people
    • Jump to TripAdvisor's Tourism page for Rocklin <2>
  • Roseville
    (23 miles [37 km] to the southwest)

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.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.