City in Sumner County, Kansas · 0.8 sq mi · 1,729 people per sq mi
1,436 people live in Belle Plaine. The typical household earns $63,214, and the median resident is 42.4 years old.
2026 projection
From 1,467 in 2020
Poverty rate 16.77%
Men 38.6 · Women 46.4
2010–2026
1,436
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.
2010–2026
1,436
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 | 1,436 | -6 | 0.42% |
|---|---|---|---|
| 2025 | 1,442 | -9 | 0.62% |
| 2024 | 1,451 | -7 | 0.48% |
| 2023 | 1,458 | -7 | 0.48% |
| 2022 | 1,465 | -4 | 0.27% |
| 2021 | 1,469 | +2 | 0.14% |
| 2020 | 1,467 | -26 | 1.74% |
| 2019 | 1,493 | -19 | 1.26% |
| 2018 | 1,512 | -17 | 1.11% |
| 2017 | 1,529 | -12 | 0.78% |
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.
Belle Plaine has a population change lower than Sumner County, Kansas, 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 14 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
54% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 54% | 61% | 48% |
| Never married | 19% | 26% | 13% |
| Divorced | 11% | 7% | 15% |
| Widowed | 15% | 6% | 22% |
| Separated | 2% | 0% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources