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Duncan, OK
City in Stephens County, Oklahoma. ZIP codes: 73533.
Population
22,958
Land area
42.9sq mi
People per sq mi
535
ZIP codes
1
Duncan and its ZIP codes
Duncan at a glance
- Duncan is about 9.1 times as dense as Oklahoma as a whole.
- By population, it ranks 20th among 834 cities and towns in Oklahoma.
- The median household income is $58,054, 11% below the Oklahoma median of $65,039.
- A typical owner-occupied home is valued at $131,500 (34% below Oklahoma) and median rent is $896 a month.
Local data for Duncan, OK
Counts from official public data
- Hospitals1
- Emergency Rooms1
- Nursing Homes2
- Schools8
- Colleges1
- Libraries2
- Banks13
- Post Offices1
- Parks11
- Grocery Stores5
- Restaurants79
- Affordable Housing2
- Home Health Agencies1
- Hospice Care2
- Dialysis Centers1
- Mental Health & Addiction Treatment2
- Community Colleges & Trade Schools1
- Toxic Release Facilities6
- Historic Places8
Housing and community stats
Duncan, OK, American Community Survey 2020-2024
Median household income
$58,054
Poverty rate
20.5%
Median home value
$131,500
Median rent
$896/mo
Homeownership
67.7%
Bachelor's or higher
20.2%
Median age
39.9
Average commute
21.9 min
Largest reported origins and ancestries: Irish Americans (2,784), German Americans (2,304), Mexican Americans (2,187).
Economy and federal money
Jobs, pay, income and spending are for Stephens County. PPP loans are for Duncan.
Unemployment rate
4.5%
Aug 2026, +0.6 pts in a year
Average annual pay
$54,813
14,725 jobs, 2025
Income per person
$55,200
BEA, 2024
Federal spending
$369M
FY 2026, $8,611 per person
How people get to work
Duncan, OK, workers 16 and older. American Community Survey 5-year estimates
- Drove alone76.4%
- Carpooled15.4%
- Public transit0.3%
- Walked1.1%
- Bicycle0.5%
- Taxi, ride-hailing, motorcycle or other1.1%
- Worked from home5.3%
Average one-way commute: 21.9 minutes for people who do not work from home.
Environment and hazard risk
Duncan, OK, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: hail
Storm events since 1996
1,032
Countywide, mostly hail
Flood insurance policies
39
0.2% of homes, county
July high / Jan low
94° / 28°F
37.1 inches of rain a year
Hazards, floods and storm historyCheck a flood zone8 historic places
Health statistics
Share of adults in Duncan, OK, CDC PLACES estimates
Obesity
39.7%
U.S. 33.3% +6.4 pts
Diabetes
14.9%
U.S. 12.1% +2.8 pts
Smoking
19.5%
U.S. 12.8% +6.7 pts
Uninsured (18-64)
12.8%
U.S. 11.1% +1.7 pts
ZIP codes in Duncan
1 in or overlapping Duncan. Population shown
Cities near Duncan
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Empire CityTown | 4.3 mi | 9.3 |
| MarlowCity | 7.3 mi | 7.1 |
| SunrayCensus-designated place | 8.2 mi | 1.7 |
| Central HighTown | 8.7 mi | 52.9 |
| ComancheCity | 11 mi | 5.1 |
| BrayTown | 12 mi | 61.6 |
| Rush SpringsTown | 18 mi | 1.2 |
| VelmaTown | 18 mi | 1.4 |
| SterlingTown | 19 mi | 0.8 |
| AddingtonTown | 19 mi | 0.2 |
| LocoTown | 22 mi | 0.3 |
| HastingsTown | 22 mi | 0.5 |
| WaurikaCity | 23 mi | 11.9 |
| TempleTown | 23 mi | 1.3 |
| GeronimoTown | 24 mi | 1.5 |
| WaltersCity | 25 mi | 8.1 |
Frequently asked questions
- What county is Duncan, OK in?
- Duncan is in Stephens County, Oklahoma.
- What ZIP codes are in Duncan, OK?
- ZIP codes in or overlapping Duncan include 73533.
- What is the population of Duncan, OK?
- About 22,958 people live in Duncan, based on American Community Survey 5-year estimates.
- What cities are near Duncan?
- Nearby places include Empire City (4.3 mi), Marlow (7.3 mi), Sunray (8.2 mi), Central High (8.7 mi), Comanche (11 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023