Solano County Demographics

A map of Solano County's Population by Race

Solano County, California had a population of 453,491 in 2020. It was 34.2% White, 13.2% Black, 15.6% Asian, 28.3% Hispanic, 1.8% Native American/Other, and 6.8% Multiracial. This map presents the population of Solano County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Solano County is the 19th most populous county of the 58 counties in California.

Solano County's White Population

155,125 residents of Solano County identify as White, or 34.2%. This makes the White share of the population of Solano County roughly similar to the White share of the population of California (34.7% White). Of the 58 counties in California, Solano County is ranked #42 in terms of White residents as a share of the population.

Solano County is more White than neighboring Alameda County (28.1% White). Solano County is less White than neighboring Contra Costa County (39.1% White), Yolo County (43.4% White), Napa County (49.9% White), and Sacramento County (41% White).

Solano County's Black Population

60,051 residents of Solano County identify as Black, or 13.2%. This makes the Black share of the population of Solano County slightly larger than the Black share of the population of California (5.4% Black). Of the 58 counties in California, Solano County is ranked #1 in terms of Black residents as a share of the population.

Solano County is more Black than neighboring Contra Costa County (8.4% Black), Yolo County (2.6% Black), Napa County (1.7% Black), Alameda County (9.5% Black), and Sacramento County (9.2% Black).

Solano County's Asian Population

70,953 residents of Solano County identify as Asian, or 15.6%. This makes the Asian share of the population of Solano County roughly similar to the Asian share of the population of California (15.1% Asian). Of the 58 counties in California, Solano County is ranked #10 in terms of Asian residents as a share of the population.

Solano County is more Asian than neighboring Yolo County (13.8% Asian), and Napa County (7.6% Asian). Solano County is less Asian than neighboring Contra Costa County (18.4% Asian), Alameda County (32.1% Asian), and Sacramento County (17.4% Asian).

Solano County's Hispanic Population

128,155 residents of Solano County identify as Hispanic, or 28.3%. This makes the Hispanic share of the population of Solano County slightly less than the Hispanic share of the population of California (39.4% Hispanic). Of the 58 counties in California, Solano County is ranked #27 in terms of Hispanic residents as a share of the population.

Solano County is more Hispanic than neighboring Contra Costa County (27% Hispanic), Alameda County (23.4% Hispanic), and Sacramento County (23.6% Hispanic). Solano County is less Hispanic than neighboring Yolo County (33.1% Hispanic), and Napa County (35.4% Hispanic).

Solano County's Native American/Other Population

8,387 residents of Solano County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.8%. This makes the Native American/Other share of the population of Solano County roughly similar to the Native American/Other share of the population of California (1.3% Native American/Other). Of the 58 counties in California, Solano County is ranked #25 in terms of Native American/Other residents as a share of the population.

Solano County is more Native American/Other than neighboring Contra Costa County (1.4% Native American/Other), Yolo County (1.5% Native American/Other), Napa County (1.3% Native American/Other), and Alameda County (1.7% Native American/Other). Solano County is less Native American/Other than neighboring Sacramento County (2.2% Native American/Other).

Solano County's Multiracial Population

30,820 residents of Solano County identify as Multiracial, or 6.8%. This makes the Multiracial share of the population of Solano County roughly similar to the Multiracial share of the population of California (4.1% Multiracial). Of the 58 counties in California, Solano County is ranked #7 in terms of Multiracial residents as a share of the population.

Solano County is more Multiracial than neighboring Contra Costa County (5.7% Multiracial), Yolo County (5.5% Multiracial), Napa County (4.2% Multiracial), Alameda County (5.3% Multiracial), and Sacramento County (6.5% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.