City in Louisa County, Iowa · 0.6 sq mi · 614 people per sq mi
348 people live in Letts. The typical household earns $76,538, and the median resident is 33 years old.
2026 projection
From 363 in 2020
Poverty rate 3.32%
Men 34.5 · Women 32.9
2010–2026
348
2026 projection
4.1% 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
348
2026 projection
4.1% 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 | 348 | -2 | 0.57% |
|---|---|---|---|
| 2025 | 350 | -6 | 1.69% |
| 2024 | 356 | +3 | 0.85% |
| 2023 | 353 | -6 | 1.67% |
| 2022 | 359 | -2 | 0.55% |
| 2021 | 361 | -2 | 0.55% |
| 2020 | 363 | 0 | 0.00% |
| 2019 | 363 | -4 | 1.09% |
| 2018 | 367 | -4 | 1.08% |
| 2017 | 371 | -2 | 0.54% |
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.
Letts has a population change higher than Louisa 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 4 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 30 residents
63% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 63% | 70% | 56% |
| Never married | 23% | 20% | 26% |
| Divorced | 6% | 3% | 8% |
| Widowed | 8% | 7% | 10% |
| Separated | <1% | 0% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources