Statistics for Contra Costa County
Latest official figures for Contra Costa County, each linked to its source.
Demography
| Population | 1,170,070 persons | 2025 |
| Median age | 40.5 years | 2024 |
| Live births, July to June | 11,195 count | 2025 |
| Deaths, July to June | 8,327 count | 2025 |
| Crude birth rate, July to June | 9.57 per 1,000 inhabitants | 2025 |
| Crude death rate, July to June | 7.12 per 1,000 inhabitants | 2025 |
Labor market
| Unemployment rate | 5 % | 2026-08 |
Income and living conditions
| Poverty rate (US official measure) | 8.5 % | 2024 |
| Median household income | 127,229 USD | 2024 |
Economy
| Gross domestic product (GDP), US dollars | 96,579.1 USD million | 2024 |
| Real GDP growth | 1.1 % | 2024 |