What is the population of Duncan city?

Duncan city has 22,872 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #20 of 846 in Oklahoma.

What is the median household income in Duncan city?

Median household income in Duncan city is $57,020 a year, 27.4% below the national figure of $78,538.

How much does it cost to rent or buy in Duncan city?

Median gross rent is $872 a month and the median home value is $125,800, so rent absorbs about 18.4% of median household income.

Is Duncan city affordable compared with the rest of the US?

Homes cost about 2.2× the local median income here versus roughly 3.9× nationally, so Duncan city is more affordable to buy in than the typical US market, and rent takes 18.4% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Oklahoma · Census place 21900

Duncan, OK population, income and ZIP codes

Quick answer

The population of the city of Duncan, Oklahoma (Duncan, OK — Census place “Duncan city”) is 22,872 residents, ranking #20 of 846 places in Oklahoma. Median household income is $57,020, the median home is worth $125,800 and median gross rent runs $872 a month. Looking for the Duncan Oklahoma ZIP code list? 1 ZIP codes serve Duncan, OK: 73533.

Population: 22,872Duncan city residents
Median household income: $57,020Past 12 months, inflation adjusted
Median home value: $125,800Owner-occupied units
Median gross rent: $872Rent plus utilities, monthly
Median age: 40 yrsAll residents
Homeownership rate: 67.8%Owner-occupied households

Duncan ZIP codes (Oklahoma)

Census ZCTAs whose delivery area overlaps Duncan.

The Duncan OK ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

73533

What the numbers mean in Duncan city

Housing cost measured against local earnings.

A household earning the Duncan city median would spend about 18.4% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 2.2× the median household income; nationally that ratio sits near 4.5×. Poverty affects 20.4% of residents and 67.8% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Duncan city, OK in context

How this area compares with national benchmarks.

Duncan city is a mid-size town in Oklahoma, with 22,872 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #20 of 846 ranked by population — larger than 97% of them. The median age here is 40 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Duncan city earn a median of $57,020 a year, 27.4% below the national figure of $78,538 and 7% above the $53,500 median for the 240 Oklahoma cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 20.4% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Duncan city is valued at $125,800, 58.5% below the national figure and within a couple of points of the $125,800 peer median, while median gross rent runs $872 a month, 38% below the national figure, or roughly $10,464 across a full year. A household on the local median income would put about 18.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.2×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 67.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Oklahoma.

More Oklahoma coverage.

Frequently asked questions

Common questions about this area.

What is the population of Duncan city?: Duncan city has 22,872 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #20 of 846 in Oklahoma.
What is the median household income in Duncan city?: Median household income in Duncan city is $57,020 a year, 27.4% below the national figure of $78,538.
How much does it cost to rent or buy in Duncan city?: Median gross rent is $872 a month and the median home value is $125,800, so rent absorbs about 18.4% of median household income.
Is Duncan city affordable compared with the rest of the US?: Homes cost about 2.2× the local median income here versus roughly 3.9× nationally, so Duncan city is more affordable to buy in than the typical US market, and rent takes 18.4% of median income against the 30% cost-burden line.
How current is this Duncan city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.