Castana, Iowa Demographics & Population 2026
During the 2020–2024 ACS period, Castana, Iowa had a total population of 162, the 747th largest city in Iowa, with a median household income of $55,469, which is 26% lower than the state average. The poverty rate is 6.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Only 4.9% of adults have a bachelor's degree, well below the national average of 35.7%.
- Housing is very affordable with a home-value-to-income ratio of just 1.3x.
- Near full employment with an unemployment rate of just 0.8%.
Castana Quick Facts
How Castana Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 157 | 162 | +3.2% |
| Median household income | $55,833 | $55,469 | -0.7% |
| Median home value | $67,500 | $74,400 | +10.2% |
How Castana Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 31 | National average: 61
Education
Educational Attainment (Adults 25+)
Castana Rankings in Iowa
Explore Iowa Rankings
Other Cities in Monona County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Onawa | 2,839 | $62,143 | 16.3% | $145,800 |
| Mapleton | 989 | $55,208 | 8.4% | $113,000 |
| Whiting | 777 | $73,333 | 9.7% | $113,800 |
| Ute | 351 | $55,341 | 12.0% | $75,000 |
| Blencoe | 280 | $86,875 | 2.9% | $87,500 |
| Moorhead | 195 | $45,000 | 26.2% | $54,200 |
| Soldier | 133 | $56,250 | 15.8% | $78,300 |
| Turin | 131 | $94,129 | 0.8% | $95,000 |
| Rodney | 39 | $51,563 | 10.3% | $170,800 |
Cities Similar to Castana
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Auburn | 160 | $58,750 | $96,700 | 20.6% | 16.9% |
| Rembrandt | 157 | $58,438 | $85,800 | 16.4% | 19.8% |
| Havelock | 162 | $63,229 | $23,800 | 10.1% | 23.5% |
| Geneva | 152 | $56,250 | $61,400 | 7.0% | 19.1% |
| Pacific Junction | 150 | N/A | $149,100 | 5.6% | 14.0% |
A note before these figures: with a population of 162, Castana's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Castana is a small community located in Iowa, within Monona County. The total population is 162. It ranks as the 747th most populous out of 1,017 Census-designated places in Iowa.
Age Demographics
The median age in Castana is 43.8 years. This is 13% higher than the state median of 38.6 years.
Economy, Income & Housing
The median household income in Castana is $55,469. This is 26% lower than the state median of $75,059. It is also 31% lower than the national median of $80,734. The poverty rate stands at 6.2%. This is 44% lower than the state poverty rate of 11.1%. The unemployment rate is 0.8%. This is 78% lower than the state rate of 3.6%. The median home value is $74,400. Housing costs are 64% lower than the state median of $208,000. With a home-value-to-income ratio of just 1.3x, Castana is one of the most affordable housing markets in the area. 92.6% of occupied housing units are owner-occupied. This homeownership rate is 29% higher than the state average of 71.7%.
Race & Ethnicity
Castana has a predominantly White (non-Hispanic) population, comprising 95.7% of all residents.
Education
4.9% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 84% lower than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.2%.
Data Sources & Methodology
All demographic data for Castana, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,017 Census-designated places in Iowa. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Castana, Iowa?
Castana, Iowa has a population of 162 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Castana, IA?
The median household income in Castana is $55,469, which is 31% lower than the national median of $80,734.
What is the poverty rate in Castana, IA?
The poverty rate in Castana is 6.2%. This means approximately 10 residents live below the federal poverty line.
What is the racial makeup of Castana, Iowa?
Castana's population is 95.7% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Castana, IA?
The median home value in Castana is $74,400. The home-value-to-income ratio is 1.3x.
How educated is Castana, Iowa?
4.9% of adults (25+) in Castana hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.