Plumas County, California
Plumas County: county in the Sierra Nevada, California, United States
About
Plumas County is a county located in the U.S. state of California. As of the 2010 census, the population was 20,007 and a population density of 3 people per km². After 10 years in 2020 county had an estimated population of 18,967 inhabitants. Its county seat is Quincy. The county was created 172 years ago in 1853.
County Snapshot
Plumas County at a glance
Plumas County currently has 2 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
2
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
California counties
58
Open related pagesLargest city
East QuincyPopulation 2,489
Top linked places
Quick Facts about Plumas County
| Population | 18,967 (2020) |
| Country | United States of America |
| State | California (United States) |
| Area | 6769 km2 |
| Official name | Plumas County |
| Water as percent of area | 2.29% |
| Land as percent of area | 97.71% |
| Latitude & Longitude | 40.0047,-120.8386 |
| Named for | Feather River |
| Altitude | 4,934 feet / 1504 meters |
| Capital | Quincy |
| Establishment | January 01, 1854 |
| Time Zone | America/Los_Angeles |
| Local time | 01:40:58 (17th April 2026) |
| Density | 3 Pop. per km² as of 2020 |
| Population growth | -5.48% (2010-2020) |
Geography
Plumas County is located at 40°0'17"N 120°50'19"W (40.0046800, -120.8386000). It has 6 neighbors: Butte County, Sierra County, Yuba County, Lassen County, Shasta County and Tehama County.
Plumas County map
icon to open full mode. View satellite images
The largest city of Plumas County is Portola with a population of 1,913. . See all Plumas County cities & populated places.
Plumas County Populated Places
Cities, towns, neighborhoods & other populated places in Plumas County.
| City Name | Population | Title |
|---|---|---|
| East Quincy | 2,489 | Census-designated place in Plumas County, California |
| Portola | 1,913 | City in Plumas County, California, United States |
Official website of Plumas County
Official Website- Quincy
Demographics
According to census records, the population of Plumas County decreased by 5.48% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 20,007 | - | census |
| 2011 | 19,719 | -1.46% | estimation process |
| 2012 | 19,377 | -1.76% | estimation process |
| 2013 | 18,895 | -2.55% | estimation process |
| 2014 | 18,622 | -1.47% | estimation process |
| 2015 | 18,427 | -1.06% | estimation process |
| 2016 | 18,665 | 1.28% | estimation process |
| 2017 | 18,660 | -0.03% | estimation process |
| 2018 | 18,741 | 0.43% | estimation process |
| 2019 | 18,807 | 0.35% | estimation process |
| 2020 | 18,967 | 0.84% | estimation process |
People born in Plumas County (3)
People born in Plumas County, including Lawman and later outlaw of the Old West Burt Alvord, benefactor Louise M. Davies, tennis player Alice Marble, .
More notable people
California Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Los Angeles County | 9,943,046 | County in California, United States of America |
| Los Angeles | 3,970,219 | The second most populous city in the United States and the center of the Los Angeles metropolitan area. |
| San Diego County | 3,332,427 | Founded in 1850, is one of 58 counties in the US state of California. |
| Orange County | 3,166,857 | County in California, United States |
| Riverside County | 2,489,188 | County in California, United States |
| San Bernardino County | 2,189,183 | County in California, United States |
| Santa Clara County | 1,907,105 | County in California, United States |
| Alameda County | 1,662,323 | County in California, United States |
| Sacramento County | 1,559,146 | County in California, United States |
| San Diego | 1,422,420 | The eighth most populous city in the United States and the center of the San Diego metropolitan area. |
| Laguna | 1,370,232 | A city located in Orange County, California. |
| Contra Costa County | 1,152,333 | County in California, United States |
| San Jose | 1,013,616 | The tenth most populous city in the United States and the center of the San Jose metropolitan area. |
| Fresno County | 1,000,918 | County in California, United States |
| Kern County | 901,362 | This county is located in the southern San Joaquin Valley, extending eastward over the Tehachapi Mountains to the Mojave Desert. |
| San Francisco County | 866,606 | County, coextensive with the city of San Francisco, California, United States |