Placer County , California

Placer County in California, United States

Placer County, CA locator map
Location of Placer County, CA on California map.

About

Placer County is a county located in the U.S. state of California. As of the 2010 census, the population was 348,432 and a population density of 90 people per km². After 9 years in 2019 county had an estimated population of 398,329 inhabitants. Its county seat is Auburn. The county was created 170 years ago in 1850.

Placer County has a total area of 1,502.71 square miles (3892 km2).

Placer County map

Placer County, CA Quick Facts

Population : 398,329 (2019)
Country : United States of America
State : California
Area : 3892 km2
Water as percent of area : 6.35%
Land as percent of area : 93.65%
Named for : placer mining
Altitude : 3,593 feet / 1095 meters
Capital : Auburn
Establishment : January 01, 1851
Time Zone : America/Los_Angeles
Local time : 03:08:01 (19th April 2021)
Density : 102 Pop. per km² as of 2019
Population growth : 12.53% (2010-2019)

Placer County, CA has 8 neighbors .

  • Auburn

The population of Placer County increased by 12.53% in 9 years.

Year Population Method
2010 348,432 census
2011 356,328 estimation process
2012 360,263 estimation process
2013 365,398 estimation process
2014 369,217 estimation process
2015 372,841 estimation process
2016 378,943 estimation process
2017 385,115 estimation process
2018 392,330 estimation process
2019 398,329 estimation process

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People born in Placer County, CA (3)

People born in Placer County, CA, including football player and coach, lawyer George W. Gregory, artist Frank Happersberger, american writer, wife of John Fante Joyce Fante, you can see a list of people who born in Placer County, CA.

Placer County, CA Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Placer County, CA.

City Name Population Title
Roseville 141,500 City in Placer County, California, United States
Rocklin 68,823 City in California
Lincoln 48,275 City in Placer County, California
Auburn 14,195 City in California, United States
North Auburn 13,022 Census designated place
Loomis 6,866 City in California
Colfax 2,002 City in California, USA

California Other Counties (more counties)

County Name Population Title
Los Angeles County 10,039,107 County in California, United States of America
Los Angeles 3,979,576 County seat of Los Angeles County, California; second largest city in the United States by population
San Diego County 3,338,330 San Diego County, founded in 1850, is one of 58 counties in the US state of California.
Orange County 3,175,692 County in California, United States
Riverside County 2,470,546 County in California, United States
San Bernardino County 2,180,085 County in California, United States
Santa Clara County 1,927,852 County in California, United States
Alameda County 1,671,329 County in California, United States
Sacramento County 1,552,058 County in California, United States
San Diego 1,423,851 City in San Diego County, California, United States, eighth largest city in the country by population
Laguna 1,370,232 Former census-designated place
Contra Costa County 1,153,526 County in California, United States
San Jose 1,021,795 County seat of Santa Clara County, California; tenth largest city in the United States by population
Fresno County 999,101 County in California, United States
City and County of San Francisco 883,869 Consolidated city-county in California, United States
San Francisco 881,549 Consolidated city-county in California, United States

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