Population by Age Group
| Age Group | Under 18 | 18-64 | 65 and over | |||
|---|---|---|---|---|---|---|
| Total | Percentage | Total | Percentage | Total | Percentage | |
| Unincorporated Marin County | 13,043 | 19% | 39,200 | 57% | 16,751 | 24% |
* 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. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.