Population by Age Group
Population by Age Group
Population by Age Group
| Age Group | Under 18 | 18-64 | 65 and over | |||
|---|---|---|---|---|---|---|
| Total | Percentage | Total | Percentage | Total | Percentage | |
| Contra Costa County | 263,255 | 23% | 709,873 | 61% | 192,799 | 17% |
* For the table above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.