Tehama County Demographics

A map of Tehama County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	40,017	41,340	61.4%	62.8%
Hispanic	18,941	17,938	29.1%	27.2%
Multiracial	3,073	3,588	4.7%	5.5%
Native American/Other	1,486	1,587	2.3%	2.4%
Asian	1,119	985	1.7%	1.5%
Black	531	391	0.8%	0.6%

Tehama County, California has an estimated population of 65,167, a slight decrease from the 65,829 recorded in the 2020 Census. The population is 61.4% White, 29.1% Hispanic, 4.7% Multiracial, 2.3% Native American/Other, 1.7% Asian, and 0.8% Black. This demographic dot map shows the population of Tehama County, with one dot drawn for each person counted by the Census, color-coded by race.

Tehama has become slightly more racially diverse since 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 Tehama County, that probability was 52.8% in 2020 and 53.5% in the most recent ACS estimates.

Tehama County is ranked the 42nd most populous county in California, out of 58 counties. Tehama County was ranked the 41st most populous county in the 2020 Census.

Tehama County's White Population

40,017 residents of Tehama County, or 61.4% of the population, identify as White. The share of White residents in Tehama County is significantly higher than in California overall, where 33.8% of the population is White. Tehama County ranks 21st statewide in terms of White residents as a share of the population, out of 58 counties.

Since the 2020 Census, Tehama County's White population has declined by an estimated 3.2%. White residents' share of Tehama County's population has decreased from 62.8% to 61.4%.

Tehama County is more White than neighboring Glenn County (47.5% White), and Colusa County (29.8% White). Tehama County is less White than neighboring Shasta County (75.3% White), Butte County (65.1% White), and Trinity County (77.4% White).

Tehama County's Black Population

531 residents of Tehama County, or 0.8% of the population, identify as Black. The share of Black residents in Tehama County is slightly lower than in California overall, where 5.2% of the population is Black. Tehama County ranks 51st statewide in terms of Black residents as a share of the population, out of 58 counties.

Since the 2020 Census, Tehama County's Black population has grown by an estimated 35.8%. Black residents' share of Tehama County's population has remained roughly unchanged at 0.8%.

Tehama County is more Black than neighboring Glenn County (0.2% Black). Tehama County is less Black than neighboring Butte County (1.7% Black), Colusa County (1.5% Black), and Trinity County (1.1% Black).

Tehama County's Asian Population

1,119 residents of Tehama County, or 1.7% of the population, identify as Asian. The share of Asian residents in Tehama County is considerably lower than in California overall, where 15.3% of the population is Asian. Tehama County ranks 45th statewide in terms of Asian residents as a share of the population, out of 58 counties.

Since the 2020 Census, Tehama County's Asian population has grown by an estimated 13.6%. Asian residents' share of Tehama County's population has remained roughly unchanged at 1.7%.

Tehama County is more Asian than neighboring Colusa County (0.9% Asian), and Trinity County (0.6% Asian). Tehama County is less Asian than neighboring Glenn County (3% Asian), Shasta County (3.4% Asian), and Butte County (5.5% Asian).

Tehama County's Hispanic Population

18,941 residents of Tehama County, or 29.1% of the population, identify as Hispanic. The share of Hispanic residents in Tehama County is considerably lower than in California overall, where 40.2% of the population is Hispanic. Tehama County ranks 28th statewide in terms of Hispanic residents as a share of the population, out of 58 counties.

Since the 2020 Census, Tehama County's Hispanic population has grown by an estimated 5.6%. Hispanic residents' share of Tehama County's population has increased from 27.2% to 29.1%.

Tehama County is more Hispanic than neighboring Shasta County (11.8% Hispanic), Butte County (20% Hispanic), and Trinity County (6.1% Hispanic). Tehama County is less Hispanic than neighboring Glenn County (45% Hispanic), and Colusa County (62.9% Hispanic).

Tehama County's Native American/Other Population

1,486 residents of Tehama County, or 2.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Tehama County is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Tehama County ranks 15th statewide in terms of Native American/Other residents as a share of the population, out of 58 counties.

Since the 2020 Census, Tehama County's Native American/Other population has declined by an estimated 6.4%. Native American/Other residents' share of Tehama County's population has remained roughly unchanged at 2.3%.

Tehama County is more Native American/Other than neighboring Glenn County (0.9% Native American/Other), Shasta County (2% Native American/Other), and Butte County (1.7% Native American/Other). Tehama County is less Native American/Other than neighboring Colusa County (2.4% Native American/Other), and Trinity County (7.9% Native American/Other).

Tehama County's Multiracial Population

3,073 residents of Tehama County, or 4.7% of the population, identify as Multiracial. The share of Multiracial residents in Tehama County is comparable to the share in California overall, where 4.4% of the population is Multiracial. Tehama County ranks 23rd statewide in terms of Multiracial residents as a share of the population, out of 58 counties.

Since the 2020 Census, Tehama County's Multiracial population has declined by an estimated 14.4%. Multiracial residents' share of Tehama County's population has decreased from 5.5% to 4.7%.

Tehama County is more Multiracial than neighboring Glenn County (3.4% Multiracial), and Colusa County (2.5% Multiracial). Tehama County is less Multiracial than neighboring Shasta County (6.7% Multiracial), Butte County (5.9% Multiracial), and Trinity County (6.9% 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.