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Castana, IA

View of Castana, IA
Image credit: Jared Winkler / CC BY-SA 4.0
Population
103
U.S. Census Population Estimates Program · 2025
Elevation
1,146 ft
Median Home Value
$74,400
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$638/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$55,469
U.S. Census American Community Survey 5-Year · 2024

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Castana in context.

OverallBest places in IowaPopulation rankingHighest population places in IowaNearest larger communitySouth Sioux City, Nebraska37 miles away · 14,158 residents.

About Castana

Castana is a city in Monona County, Iowa, United States. The 2020 census counted 107 residents. A post office has been in operation at Castana since 1865. Castana was platted in 1886 by the railroad. The Western Iowa Experimental farm, a part of Iowa State University, is located just outside Castana. That mix gives Castana a clear local shape within Iowa, with older layers still visible in current places. The local scoop is a place whose streets, landmarks, and institutions keep its earlier story close to the present. The city is located 10 miles from Onawa and 39 miles from Sioux City.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower FEMA County Hurricane Risk IndexA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0rating

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