City in Allegan County, Michigan · 2.1 sq mi · 1,787 people per sq mi
3,709 people live in Plainwell. The typical household earns $66,525, and the median resident is 39.4 years old.
2026 projection
From 3,788 in 2020
Poverty rate 10.39%
Men 38 · Women 40.6
1870–2026
3,709
2026 projection
2.1% since 2020 (decrease)
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.
1870–2026
3,709
2026 projection
2.1% since 2020 (decrease)
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 | 3,709 | -13 | 0.35% |
|---|---|---|---|
| 2025 | 3,722 | -18 | 0.48% |
| 2024 | 3,740 | -13 | 0.35% |
| 2023 | 3,753 | 0 | 0.00% |
| 2022 | 3,753 | -17 | 0.45% |
| 2021 | 3,770 | -18 | 0.48% |
| 2020 | 3,788 | -2 | 0.05% |
| 2019 | 3,790 | -11 | 0.29% |
| 2018 | 3,801 | -11 | 0.29% |
| 2017 | 3,812 | +17 | 0.45% |
Showing 10 of 31 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.
Plainwell has a population change lower than Allegan County, Michigan, 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 38 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 10 residents
42% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 42% | 41% | 43% |
| Never married | 34% | 43% | 24% |
| Divorced | 15% | 13% | 17% |
| Widowed | 9% | 3% | 16% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources