Zip Code 73533
Duncan, Oklahoma — Stephens County
📍 ZIP code 73533 is in Duncan, Stephens County, Oklahoma.
ZIP code 73533 is located in Duncan, Stephens County, Oklahoma. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 27,935. The area code for ZIP code 73533 is 918.
Quick Answer
Zip code 73533 is in Duncan, Oklahoma (Stephens County). It has a population of 27,935, median household income of $59,341, and median home value of $137,300.
Population
27,935
Income
$59,341
Home Value
$137,300
Climate
94°F / 28°F
About Zip Code 73533
Zip code 73533 is located in Duncan, Oklahoma, within Stephens County. Home to approximately 27,935 residents, this area sits at an elevation of 1202 ft and falls within the Central (CST/CDT) timezone. The local area code is 918.
The median household income is $59,341 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $137,300, and the cost of living index is 60 (40% below the national average of 100).
Summers average a high of 94°F while winters drop to 28°F. The area receives about 37 in of rain and 3 in of snow annually. The zip code covers 331.9 square miles of land area and 4.8 square miles of water.
Key Statistics
27,935
$59,341
$137,300
Central (CST/CDT)
918
1202 ft
331.9 sq mi
39.8
12,969
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Compare With Nearby Zip Codes
| Metric | 73533 | 73055 | 73529 | 73491 | 73442 | 73425 |
|---|---|---|---|---|---|---|
| City | Duncan, OK | Marlow, OK | Comanche, OK | Velma, OK | Loco, OK | Countyline, OK |
| Population | 27,935 | 9,639 | 4,757 | 763 | 276 | 119 |
| Median Income | $59,341 | $63,545 | $66,759 | $58,750 | $50,500 | $29,621 |
| Home Value | $137,300 | $154,300 | $110,700 | $110,000 | $134,400 | $338,500 |
| Cost of Living | 60 | 63 | 60 | 60 | 60 | 87 |
| Median Age | 39.8 | 42.8 | 42.3 | 38.6 | 60.3 | 48.1 |
Cost of Living
100 = National Average. Duncan's cost of living is 40% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.3x
Demographics
Zip code 73533 has a population of 27,935 people with a median age of 39.8. There are 12,969 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Duncan (73533) population trend from 2010 to 2024
↓ -19.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
94°F
28°F
37 in
3 in
Duncan experiences hot summers with average highs around 94°F. Winters are cool with lows averaging 28°F. The area receives about 3 in of snow per year.
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Housing & Economy
Median Home Value
$137,300
Median Household Income
$59,341
With 12,969 housing units across 331.9 square miles, 73533 has a housing density of 39 units per square mile. The home price-to-income ratio is 2.3x.
Location & Geography
Latitude
34.5050°
Longitude
-97.8667°
Land Area
331.9 sq mi
Water Area
4.8 sq mi
Nearby Zip Codes
Zip codes closest to 73533 (Duncan, OK) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 73533's $59,341. A way to compare Duncan to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 73533 (Duncan, OK). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Duncan, Oklahoma?
Duncan, Oklahoma uses zip code 73533.
What county is zip code 73533 in?
Zip code 73533 is located in Stephens County, Oklahoma.
What is the population of zip code 73533?
The population of zip code 73533 is 27,935 with a median age of 39.8.
Is 73533 in Duncan, Oklahoma?
Yes, zip code 73533 is in Duncan, Stephens County, Oklahoma. The area code is 918.
Frequently Asked Questions
What city is zip code 73533 in?
Zip code 73533 is in Duncan, Oklahoma. It is part of Stephens County and uses the Central (CST/CDT) timezone.
What is zip code 73533?
Zip code 73533 is a U.S. postal code in Duncan, Oklahoma (Stephens County). It has a population of 27,935 and covers 331.9 square miles.
What is the population of zip code 73533?
The population of zip code 73533 (Duncan, OK) is 27,935 with a median age of 39.8. There are approximately 12,969 housing units in this area.
What is the median income in zip code 73533?
The median household income in zip code 73533 (Duncan, OK) is $59,341 per year. The cost of living index is 60 (100 = national average).
What is the average home price in zip code 73533?
The median home value in zip code 73533 (Duncan, OK) is $137,300. The cost of living index is 60 compared to the national average of 100.
What county is zip code 73533 in?
Zip code 73533 is located in Stephens County, Oklahoma. The primary city is Duncan.
What is the area code for zip code 73533?
Zip code 73533 in Duncan, OK uses area code 918. It is located in the Central (CST/CDT) timezone.
Is zip code 73533 a good place to live?
Zip code 73533 (Duncan, OK) has a cost of living index of 60 (100 = national average), a median household income of $59,341, and median home values of $137,300. The median age is 39.8. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 73533?
The cost of living index for zip code 73533 (Duncan, OK) is 60, where 100 represents the national average. This area is below the national average. Median home value: $137,300.
What schools serve zip code 73533?
Zip code 73533 in Duncan, Oklahoma is served by the local school district of Stephens County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.