Sumner, Iowa Demographics & Population 2026
During the 2020–2024 ACS period, Sumner, Iowa had a total population of 2,106, the 162nd largest city in Iowa, with a median household income of $58,854, which is 22% lower than the state average. The poverty rate is 13.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 2.0x.
Sumner Quick Facts
How Sumner 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 | 2,159 | 2,106 | -2.5% |
| Median household income | $56,174 | $58,854 | +4.8% |
| Median home value | $111,900 | $118,000 | +5.5% |
How Sumner 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+)
Sumner Rankings in Iowa
Explore Iowa Rankings
Other Cities in Bremer County
Cities Similar to Sumner
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Lake Mills | 2,088 | $61,875 | $122,600 | 18.0% | 15.3% |
| Columbus Junction | 2,110 | $63,828 | $125,800 | 17.9% | 10.3% |
| Northwood | 2,040 | $63,450 | $130,300 | 15.9% | 8.8% |
| Sigourney | 1,954 | $57,813 | $136,800 | 22.8% | 14.8% |
| Lamoni | 2,207 | $54,554 | $113,400 | 41.9% | 16.6% |
Population Overview
Sumner is a small community located in Iowa, within Bremer County. The total population is 2,106. It ranks as the 162nd most populous out of 1,017 Census-designated places in Iowa.
Age Demographics
The median age in Sumner is 47.5 years. This is 23% higher than the state median of 38.6 years. 13.3% 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 Sumner is $58,854. This is 22% lower than the state median of $75,059. It is also 27% lower than the national median of $80,734. The poverty rate stands at 13.6%. This is 22% higher than the state poverty rate of 11.1%. The unemployment rate is 2.9%. This is 20% lower than the state rate of 3.6%. The median home value is $118,000. Housing costs are 43% lower than the state median of $208,000. With a home-value-to-income ratio of just 2.0x, Sumner is one of the most affordable housing markets in the area. 77.9% of occupied housing units are owner-occupied. This homeownership rate is 9% higher than the state average of 71.7%.
Race & Ethnicity
Sumner has a predominantly White (non-Hispanic) population, comprising 96.3% of all residents. Black or African American residents account for 0.9%. The Black or African American population (0.9%) is well below the state average of 3.8%. The Hispanic or Latino population (0.8%) is well below the state average of 7.3%.
Education
28.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% 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 95.3%.
Data Sources & Methodology
All demographic data for Sumner, 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 Sumner, Iowa?
Sumner, Iowa has a population of 2,106 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Sumner, IA?
The median household income in Sumner is $58,854, which is 27% lower than the national median of $80,734.
What is the poverty rate in Sumner, IA?
The poverty rate in Sumner is 13.6%. This means approximately 276 residents live below the federal poverty line.
What is the racial makeup of Sumner, Iowa?
Sumner's population is 96.3% White, 0.9% Black, 0.8% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Sumner, IA?
The median home value in Sumner is $118,000. The home-value-to-income ratio is 2.0x.
How educated is Sumner, Iowa?
28.2% of adults (25+) in Sumner hold a bachelor's degree or higher, and 11.7% hold a graduate or professional degree.