City in Monona County, Iowa · 0.9 sq mi · 112 people per sq mi
102 people live in Castana. The typical household earns $55,469, and the median resident is 43.8 years old.
2026 projection
From 107 in 2020
Poverty rate 6.17%
Men 43.9 · Women 38.9
2010–2026
102
2026 projection
4.7% 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
102
2026 projection
4.7% 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 | 102 | -1 | 0.97% |
|---|---|---|---|
| 2025 | 103 | -1 | 0.96% |
| 2024 | 104 | +1 | 0.97% |
| 2023 | 103 | 0 | 0.00% |
| 2022 | 103 | 0 | 0.00% |
| 2021 | 103 | -4 | 3.74% |
| 2020 | 107 | -6 | 5.31% |
| 2019 | 113 | -3 | 2.59% |
| 2018 | 116 | -2 | 1.69% |
| 2017 | 118 | -4 | 3.28% |
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.
Castana has a population change higher than Monona 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 2 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 16 residents
64% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 64% | 64% | 64% |
| Never married | 10% | 6% | 13% |
| Divorced | 25% | 30% | 21% |
| Widowed | 1% | 0% | 3% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources