Plumas County Demographics

A map of Plumas County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	15,700	15,999	80.8%	80.8%
Hispanic	1,998	1,897	10.3%	9.6%
Multiracial	1,023	1,111	5.3%	5.6%
Native American/Other	362	536	1.9%	2.7%
Black	187	102	1.0%	0.5%
Asian	153	145	0.8%	0.7%

Plumas County, California has an estimated population of 19,423, a slight decrease from the 19,790 recorded in the 2020 Census. The population is 80.8% White, 10.3% Hispanic, 5.3% Multiracial, 1.9% Native American/Other, 1.0% Black, and 0.8% Asian. This demographic dot map shows the population of Plumas County, with one dot drawn for each person counted by the Census, color-coded by race.

Plumas is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Plumas County, that probability was 33.3% in 2020 and 33.3% in the most recent ACS estimates.

Plumas County is ranked the 51st most populous county in California, out of 58 counties. Plumas County was ranked the 51st most populous county in the 2020 Census.

Plumas County's White Population

15,700 residents of Plumas County, or 80.8% of the population, identify as White. The share of White residents in Plumas County is significantly higher than in California overall, where 33.8% of the population is White. Plumas County ranks 2nd statewide in terms of White residents as a share of the population, out of 58 counties.

Since the 2020 Census, Plumas County's White population has declined by an estimated 1.9%. White residents' share of Plumas County's population has remained roughly unchanged at 80.8%.

Plumas County is more White than neighboring Nevada County (80.7% White), Lassen County (61.3% White), Butte County (65.1% White), and Yuba County (49% White). Plumas County is less White than neighboring Sierra County (86% White).

Plumas County's Black Population

187 residents of Plumas County, or 1.0% of the population, identify as Black. The share of Black residents in Plumas County is slightly lower than in California overall, where 5.2% of the population is Black. Plumas County ranks 52nd statewide in terms of Black residents as a share of the population, out of 58 counties.

Since the 2020 Census, Plumas County's Black population has grown by an estimated 83.3%. Black residents' share of Plumas County's population has increased from 0.5% to 1.0%.

Plumas County is more Black than neighboring Sierra County (0.3% Black), and Nevada County (0.3% Black). Plumas County is less Black than neighboring Lassen County (6.1% Black), Butte County (1.7% Black), and Yuba County (3.8% Black).

Plumas County's Asian Population

153 residents of Plumas County, or 0.8% of the population, identify as Asian. The share of Asian residents in Plumas County is considerably lower than in California overall, where 15.3% of the population is Asian. Plumas County ranks 56th statewide in terms of Asian residents as a share of the population, out of 58 counties.

Since the 2020 Census, Plumas County's Asian population has grown by an estimated 5.5%. Asian residents' share of Plumas County's population has remained roughly unchanged at 0.8%.

Plumas County is more Asian than neighboring Sierra County (0% Asian). Plumas County is less Asian than neighboring Nevada County (1.6% Asian), Lassen County (2% Asian), Butte County (5.5% Asian), and Yuba County (7.8% Asian).

Plumas County's Hispanic Population

1,998 residents of Plumas County, or 10.3% of the population, identify as Hispanic. The share of Hispanic residents in Plumas County is significantly lower than in California overall, where 40.2% of the population is Hispanic. Plumas County ranks 56th statewide in terms of Hispanic residents as a share of the population, out of 58 counties.

Since the 2020 Census, Plumas County's Hispanic population has grown by an estimated 5.3%. Hispanic residents' share of Plumas County's population has increased from 9.6% to 10.3%.

Plumas County is less Hispanic than neighboring Sierra County (11% Hispanic), Nevada County (10.7% Hispanic), Lassen County (22.6% Hispanic), Butte County (20% Hispanic), and Yuba County (30.8% Hispanic).

Plumas County's Native American/Other Population

362 residents of Plumas County, or 1.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Plumas County is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Plumas County ranks 13th statewide in terms of Native American/Other residents as a share of the population, out of 58 counties.

Since the 2020 Census, Plumas County's Native American/Other population has declined by an estimated 32.5%. Native American/Other residents' share of Plumas County's population has decreased from 2.7% to 1.9%.

Plumas County is more Native American/Other than neighboring Nevada County (1% Native American/Other), Butte County (1.7% Native American/Other), and Yuba County (1.6% Native American/Other). Plumas County is less Native American/Other than neighboring Sierra County (2.1% Native American/Other), and Lassen County (3.9% Native American/Other).

Plumas County's Multiracial Population

1,023 residents of Plumas County, or 5.3% of the population, identify as Multiracial. The share of Multiracial residents in Plumas County is comparable to the share in California overall, where 4.4% of the population is Multiracial. Plumas County ranks 20th statewide in terms of Multiracial residents as a share of the population, out of 58 counties.

Since the 2020 Census, Plumas County's Multiracial population has declined by an estimated 7.9%. Multiracial residents' share of Plumas County's population has remained roughly unchanged at 5.3%.

Plumas County is more Multiracial than neighboring Sierra County (0.7% Multiracial), and Lassen County (4.2% Multiracial). Plumas County is less Multiracial than neighboring Nevada County (5.7% Multiracial), Butte County (5.9% Multiracial), and Yuba County (7% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.