City in Decatur County, Iowa · 4 sq mi · 524 people per sq mi
2,072 people live in Lamoni. The typical household earns $54,554, and the median resident is 25.5 years old.
2026 projection
From 1,969 in 2020
Poverty rate 16.56%
Men 25.4 · Women 25.7
2010–2026
2,072
2026 projection
5.2% 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
2,072
2026 projection
5.2% 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 | 2,072 | -2 | 0.10% |
|---|---|---|---|
| 2025 | 2,074 | +3 | 0.14% |
| 2024 | 2,071 | -25 | 1.19% |
| 2023 | 2,096 | -4 | 0.19% |
| 2022 | 2,100 | +8 | 0.38% |
| 2021 | 2,092 | +123 | 6.25% |
| 2020 | 1,969 | -22 | 1.10% |
| 2019 | 1,991 | -68 | 3.30% |
| 2018 | 2,059 | -32 | 1.53% |
| 2017 | 2,091 | -58 | 2.70% |
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.
Lamoni has a population change higher than Decatur County, and lower than Iowa 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 22 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
36% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 36% | 39% | 34% |
| Never married | 47% | 50% | 44% |
| Divorced | 9% | 8% | 10% |
| Widowed | 7% | 3% | 10% |
| Separated | 1% | 0% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources