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Zip Code 73533 — Duncan, OK

ZIP Code 73533 is associated with Duncan, OK, in Stephens County. The listed population estimate is 27,618; estimated density is 32.4 people per square mile. Among records with population estimates, it ranks #1 of 7 in Stephens County and #38 of 659 in OK.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (34.494840, -97.847740)

Data MetricLocal Statistic
Postal / Zip Code73533
Primary CityDuncan
State / ProvinceOK
CountyStephens
Total Population27,618
Population Density32.4 people/sq mi
TimezoneAmerica/Chicago

How 73533 Compares

MetricZIP 73533Stephens County recordsOK records
Population estimate27,61844,421 (sum)4,028,588 (sum)
Population Density32.4 /sq mi----
County population rank#1 of 7----
State population rank#38 of 659----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in OK

ZIP CodeCityDistancePopulation estimate
ZIP 73055Marlow11.0 mi10,064
ZIP 73491Velma11.0 mi791
ZIP 73529Comanche12.0 mi4,898
ZIP 73442Loco14.9 mi275
ZIP 73425Countyline16.4 mi201

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →