Demographics & People — Fairfield, California

Population Overview

Population (Census)119,985
Estimated 2026~122,700
Median Age36.9
Total Households37,955
Family Households28,380
Average Household Size3.11
Diversity Index0.7185 (highly diverse)

Race & Ethnicity

White43,137
Black or African American18,325
Asian20,913
Hispanic or Latino38,135

Heritage & Ancestry

GroupCount
Other groups66,518
Hispanic: Hispanic or Latino35,698
Hispanic: Mexican29,887
Unclassified or not reported21,679
European8,162
Irish6,153
German5,537
English5,207
Subsaharan African4,308
African3,676

Language

English Only73,040
Spanish23,642
Population 5+112,317

Veterans

Veterans7,424
Population 18+88,094

Commuting

Mean Commute Time30.7 minutes
Work from Home11.6%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Fairfield, California.