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Demographics & People — Port Costa, California
Population Overview
Population (Census) 194
Estimated 2026 ~800
Median Age 67.3
Total Households 144
Family Households 39
Average Household Size 1.35
Diversity Index 0.2685 (somewhat diverse)
Race & Ethnicity
White 163
Black or African American 0
Asian 0
Hispanic or Latino 31
Heritage & Ancestry
Group Count
Irish 201
German 162
Hispanic: Hispanic or Latino 29
Norwegian 28
Other groups 18
Hispanic: Central American 18
Hispanic: Guatemalan 18
English 11
Unclassified or not reported 11
Hispanic: Mexican 11
Language
English Only 175
Spanish 19
Population 5+ 194
Veterans
Veterans 75
Population 18+ 251
Commuting
Mean Commute Time 2.8 minutes
Work from Home 32.0%
Commuter Profile N/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Port Costa, California.