CastanaIA
A town of 103, settled in 1865.
Is Castana a good place to live?
Castana has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
103 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Moving to Castana: who provides what
Who provides power, water and the rest in Castana, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
The data
Ordered by what stands out in Castana.
Four seasons and pleasant summers: that is Castana’s year
In July, afternoons reach 85°; in January, nights fall to 11°, and about 24 inches of snow falls in a winter.
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
High risk in Castana, with inland flooding at the top
Castana’s FEMA risk score stands at 65 of 100, above both Iowa’s towns (40 of 100) and U.S. towns (44 of 100). Just over two fifths of the town’s expected losses from natural hazards come from inland flooding, followed by tornadoes at 21%. Federal aid has come to Castana households in 4 declared disasters; the latest was in 2024.
FEMA disaster declarations and aid · FEMA National Risk Index · OpenFEMA
Compared with most of Iowa and the rest of the country, more of Castana’s adults have high blood pressure
Among adults in Castana, 81% had a checkup this year and 31% sleep under 7 hours. The share of adults in Castana who have obesity is 40%, above both the Iowa town median (38%) and the median of U.S. towns (35%). Add to that, for adults in the town, the share who have diabetes is 14%. No town among the 141 in Iowa we compare has a lower share of adults who binge drink than Castana.
| Castana | Iowa towns | U.S. towns | |
|---|---|---|---|
| High blood pressure (CDC PLACES) | 41% | 35% | 35% |
| Yearly checkup (CDC PLACES) | 81% | 78% | 79% |
| Sleep under 7 hours (CDC PLACES) | 31% | 32% | 36% |
| Diabetes (CDC PLACES) | 14% | 12% | 12% |
| What stands out | Castana | IA |
|---|---|---|
| Fewer binge drinkers | 16.4% | 20.5% |
| More adults screened for colon cancer | 72.1% | 66.6% |
| More adults with heart disease | 9% | 6.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Everything we know about Castana
Colleges nearby
None within 15 miles of Castana; the nearest are
About 0 of every 100 Castana residents are enrolled in college, against 6 across Iowa.
About Castana
City in Iowa, USA
Castana is a city in Monona County, Iowa, United States. The population was 107 at the time of the 2020 census.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 0.9 sq mi
- Elevation
- 1,148 ft
- ZIP code
- 51010
Questions about Castana
Short answers, built from the data on this page.
Is Castana, IA a good place to live?
Castana has fewer than 1,000 residents, too few for fair grades; the figures below are still real.