Duncombe, Iowa Demographics & Population 2026
During the 2020–2024 ACS period, Duncombe, Iowa had a total population of 376, the 551st largest city in Iowa, with a median household income of $52,500, which is 30% lower than the state average. The poverty rate is 8.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 30% below the state average, indicating significant economic challenges.
- Housing is very affordable with a home-value-to-income ratio of just 2.2x.
Duncombe Quick Facts
How Duncombe 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 | 382 | 376 | -1.6% |
| Median household income | $63,125 | $52,500 | -16.8% |
| Median home value | $108,200 | $117,100 | +8.2% |
How Duncombe 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+)
Duncombe Rankings in Iowa
Explore Iowa Rankings
Other Cities in Webster County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Fort Dodge | 24,827 | $60,649 | 15.9% | $144,100 |
| Gowrie | 932 | $80,417 | 9.4% | $109,900 |
| Stratford | 735 | $47,875 | 9.0% | $89,300 |
| Dayton | 689 | $57,500 | 9.8% | $114,800 |
| Coalville | 649 | $78,000 | 14.0% | $197,500 |
| Badger | 433 | $72,750 | 5.1% | $142,800 |
| Callender | 413 | $75,000 | 5.0% | $107,100 |
| Farnhamville | 386 | $57,188 | 16.2% | $72,300 |
| Otho | 380 | $43,482 | 15.5% | $89,900 |
| Lehigh | 340 | $54,500 | 15.3% | $75,000 |
Cities Similar to Duncombe
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Farmersburg | 375 | $51,667 | $78,000 | 3.3% | 12.8% |
| Ringsted | 380 | $51,042 | $47,000 | 16.2% | 18.4% |
| Union | 378 | $55,625 | $74,600 | 18.0% | 6.6% |
| Delta | 363 | $52,083 | $48,100 | 2.6% | 12.2% |
| Williams | 369 | $55,417 | $85,900 | 19.4% | 9.5% |
A note before these figures: with a population of 376, Duncombe'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
Duncombe is a small community located in Iowa, within Webster County. The total population is 376. It ranks as the 551st most populous out of 1,017 Census-designated places in Iowa.
Age Demographics
The median age in Duncombe is 34.8 years. This is 10% lower than the state median of 38.6 years. 10.9% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Duncombe is $52,500. This is 30% lower than the state median of $75,059. It is also 35% lower than the national median of $80,734. The poverty rate stands at 8.6%. This is 23% lower than the state poverty rate of 11.1%. The unemployment rate is 7.7%. This is 115% higher than the state rate of 3.6%. The median home value is $117,100. Housing costs are 44% lower than the state median of $208,000. With a home-value-to-income ratio of just 2.2x, Duncombe is one of the most affordable housing markets in the area. 57.0% of occupied housing units are owner-occupied. This homeownership rate is 21% lower than the state average of 71.7%.
Race & Ethnicity
Duncombe has a predominantly White (non-Hispanic) population, comprising 90.4% of all residents. Asian residents account for 2.9%. The Hispanic or Latino population (2.4%) is well below the state average of 7.3%.
Education
14.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 55% 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 89.0%.
Data Sources & Methodology
All demographic data for Duncombe, 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 Duncombe, Iowa?
Duncombe, Iowa has a population of 376 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Duncombe, IA?
The median household income in Duncombe is $52,500, which is 35% lower than the national median of $80,734.
What is the poverty rate in Duncombe, IA?
The poverty rate in Duncombe is 8.6%. This means approximately 32 residents live below the federal poverty line.
What is the racial makeup of Duncombe, Iowa?
Duncombe's population is 90.4% White, 0.0% Black, 2.4% Hispanic/Latino, and 2.9% Asian.
What is the median home value in Duncombe, IA?
The median home value in Duncombe is $117,100. The home-value-to-income ratio is 2.2x.
How educated is Duncombe, Iowa?
14.2% of adults (25+) in Duncombe hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.