City in Amador County, California · 2.7 sq mi · 449 people per sq mi
1,190 people live in Plymouth. The typical household earns $92,500, and the median resident is 46.6 years old.
2026 projection
From 1,078 in 2020
Poverty rate 15.72%
Men 45 · Women 50.1
2010–2026
1,190
2026 projection
10.4% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
1,190
2026 projection
10.4% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 1,190 | +16 | 1.36% |
|---|---|---|---|
| 2025 | 1,174 | +29 | 2.53% |
| 2024 | 1,145 | +21 | 1.87% |
| 2023 | 1,124 | +22 | 2.00% |
| 2022 | 1,102 | +9 | 0.82% |
| 2021 | 1,093 | +15 | 1.39% |
| 2020 | 1,078 | +13 | 1.22% |
| 2019 | 1,065 | +16 | 1.53% |
| 2018 | 1,049 | +26 | 2.54% |
| 2017 | 1,023 | +21 | 2.10% |
Showing 10 of 17 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Plymouth is growing faster than Amador County, California, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 11 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 6 residents
59% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 59% | 57% | 61% |
| Never married | 24% | 30% | 17% |
| Divorced | 13% | 13% | 13% |
| Widowed | 4% | <1% | 9% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources