Duncan, OK ZIP codes

4 ZIP/ZCTAs intersecting this Census place in Stephens County.

ACS 2023 population

22,872

Median household income

$57,020

Median home value

$125,800

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Duncan (GEOID 4021900). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 42,878 (4 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Duncan, OK

Census place boundary and intersecting ZIP Code Tabulation Areas for Duncan, OK — Census place boundary for Duncan, OK. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Duncan

Population overlap

Share of each ZIP/ZCTA’s population located within Duncan, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

730554.2%
734340.0%
735290.0%
7353381.4%
USPS primary city

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Duncan

ZIP	City	County	Population	Income
73055	Marlow	Stephens County	9,639	$63,545
73434	Foster	Stephens County	547	$62,750
73529	Comanche	Stephens County	4,757	$66,759
73533	Duncan	Stephens County	27,935	$59,341

USPS associates these ZIPs with Duncan

These codes list Duncan as a primary or acceptable city. They are not used for the ACS headline.

ZIP	City	County	Population	Income
73534	Duncan	Stephens County	1,255	—
73536	Duncan	Stephens County	—	—