Town in Kennebec County, Maine · 34 sq mi · 126 people per sq mi
About 4,300 people live in Monmouth town. The typical household earns $74,648, and the median resident is 46.2 years old.
2026 projection
From 4,086 in 2020
Poverty rate 9.3%
Men 46.5 · Women 45.8
2010–2026
4,269
2026 projection
4.5% since 2020 (increase)
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.
2010–2026
4,269
2026 projection
4.5% since 2020 (increase)
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 | 4,269 | +17 | 0.40% |
|---|---|---|---|
| 2025 | 4,252 | +17 | 0.40% |
| 2024 | 4,235 | +23 | 0.55% |
| 2023 | 4,212 | +40 | 0.96% |
| 2022 | 4,172 | +36 | 0.87% |
| 2021 | 4,136 | +50 | 1.22% |
| 2020 | 4,086 | -53 | 1.28% |
| 2019 | 4,139 | +9 | 0.22% |
| 2018 | 4,130 | +19 | 0.46% |
| 2017 | 4,111 | +29 | 0.71% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 42 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 11 residents
58% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 58% | 54% | 61% |
| Never married | 24% | 27% | 21% |
| Divorced | 12% | 13% | 10% |
| Widowed | 6% | 4% | 7% |
| Separated | 1% | 1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau