Duncan city, Oklahoma Demographics & Population 2026
As of 2026, Duncan city, Oklahoma has a total population of 22,872, the 20th largest city in Oklahoma, with a median household income of $57,020, which is 10% lower than the state average. The poverty rate is 20.4%.
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 2.2x.
Duncan city Quick Facts
How Duncan city Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 55 | National average: 60
Education
Educational Attainment (Adults 25+)
Duncan city Rankings in Oklahoma
Explore Oklahoma Rankings
Cities Similar to Duncan city
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Sapulpa city | 22,268 | $61,644 | $158,300 | 19.7% | 14.3% |
| Ponca City city | 24,377 | $55,270 | $127,500 | 20.0% | 16.7% |
| Ardmore city | 24,757 | $52,954 | $158,800 | 22.2% | 16.7% |
| Bethany city | 20,606 | $55,063 | $161,500 | 22.2% | 18.9% |
| Del City city | 21,561 | $48,895 | $112,800 | 15.8% | 20.7% |
Population Overview
Duncan city is a small city located in Oklahoma. The total population is 22,872. It ranks as the 20th most populous out of 834 cities and towns in Oklahoma.
Age Demographics
The median age in Duncan city is 40.0 years. This is 8% higher than the state median of 36.9 years.
Economy, Income & Housing
The median household income in Duncan city is $57,020. This is 10% lower than the state median of $63,603. Compared to the national median of $78,538, household income here is 27% lower. The poverty rate stands at 20.4%. This is 33% higher than the state poverty rate of 15.3%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 6.1%. This is 25% higher than the state rate of 4.9%. The median home value is $125,800. Housing costs are 32% lower than the state median of $185,900. With a home-value-to-income ratio of just 2.2x, Duncan city is one of the most affordable housing markets in the area. 67.8% of occupied housing units are owner-occupied. This homeownership rate is 3% higher than the state average of 65.8%.
Race & Ethnicity
The largest racial or ethnic group in Duncan city is White (non-Hispanic), making up 74.8% of the population. Hispanic or Latino residents account for 10.9%. The Black or African American population (2.3%) is well below the state average of 6.9%. The Asian population (0.5%) is well below the state average of 2.3%.
Education
19.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% lower than the state rate of 27.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.6%.
Data Sources & Methodology
All demographic data for Duncan city, Oklahoma is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Oklahoma state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 834 Census-designated places in Oklahoma. For official data, visit data.census.gov.
Free data download: Get all Oklahoma city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Duncan city, Oklahoma?
Duncan city, Oklahoma has a population of 22,872 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Duncan city, OK?
The median household income in Duncan city is $57,020, which is 27% lower the national median of $78,538.
What is the poverty rate in Duncan city, OK?
The poverty rate in Duncan city is 20.4%. This means approximately 4,574 residents live below the federal poverty line.
What is the racial makeup of Duncan city, Oklahoma?
Duncan city's population is 74.8% White, 2.3% Black, 10.9% Hispanic/Latino, and 0.5% Asian.
What is the median home value in Duncan city, OK?
The median home value in Duncan city is $125,800. The home-value-to-income ratio is 2.2x.
How educated is Duncan city, Oklahoma?
19.5% of adults (25+) in Duncan city hold a bachelor's degree or higher, and 7.5% hold a graduate or professional degree.