Town in Marin County, California · 2.7 sq mi · 4,674 people per sq mi
About 13,000 people live in San Anselmo. The typical household earns $173,641, and the median resident is 45.6 years old.
2026 projection
From 12,809 in 2020
Poverty rate 7.44%
Men 45.2 · Women 45.9
1910–2026
12,504
2026 projection
2.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1910–2026
12,504
2026 projection
2.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 12,504 | -51 | 0.41% |
|---|---|---|---|
| 2025 | 12,555 | -52 | 0.41% |
| 2024 | 12,607 | +55 | 0.44% |
| 2023 | 12,552 | -77 | 0.61% |
| 2022 | 12,629 | -143 | 1.12% |
| 2021 | 12,772 | -37 | 0.29% |
| 2020 | 12,809 | +203 | 1.61% |
| 2019 | 12,606 | -61 | 0.48% |
| 2018 | 12,667 | -7 | 0.06% |
| 2017 | 12,674 | -51 | 0.40% |
Showing 10 of 27 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 127 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 13 residents
58% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 58% | 64% | 52% |
| Never married | 24% | 23% | 26% |
| Divorced | 14% | 10% | 18% |
| Widowed | 3% | 2% | 4% |
| Separated | 1% | 2% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau