Where is Duncan, Oklahoma, USA?

Written and fact-checked by | Reviewed by WhereIG Editorial Team | Last updated: August 14, 2026, 18:45 ET

Where is Duncan Located? - Duncan is a city located in the Stephens County of Oklahoma, United States. Duncan lies between 35.2956441 Degrees North latitudes and 81.0163388 Degrees West longitudes.

Location Map of Duncan, Oklahoma

Where is Duncan, Oklahoma

Duncan Map, Oklahoma, USA

Where is Duncan?: The Google Map showing the location of Duncan in the U.S. state of Oklahoma.

Where is Duncan Located?

Duncan is a city located in the Stephens County of Oklahoma, United States. Duncan lies between 35.2956441 Degrees North latitudes and 81.0163388 Degrees West longitudes. According to 2020 U.S.census, the population of Duncan city is 22692 people and the city has a total area of 42.91 sq mi. The city has numerous parks and recreational facilities.

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Duncan, Oklahoma Quick Facts

PropertyDetails
CityDuncan
CountyStephens County
StateOklahoma
State CapitalOklahoma City
US RegionSouthern United States
Latitude34.5023°N
Longitude97.9578°W
Elevation1,119 ft (341 m)
Land Area18.21 sq mi
Water Area0.06 sq mi
Total Area18.27 sq mi
Population (2020 Census)22,692
Population DensityAbout 1,246 per sq mi
ZIP Code73533
Area Code580
Time Zone StandardCentral Standard Time (CST), UTC -6
Time Zone DaylightCentral Daylight Time (CDT), UTC -5
CurrencyUnited States Dollar (USD)
FIPS Code40-22200
Congressional DistrictOklahoma's 4th Congressional District

Nearby Cities to Duncan, Oklahoma

  • Comanche, Oklahoma - East - 8 mi
  • Marlow, Oklahoma - North - 11 mi
  • Velma, Oklahoma - East - 17 mi
  • Empire City, Oklahoma - South - 6 mi
  • Rush Springs, Oklahoma - North - 23 mi
  • Lawton, Oklahoma - West - 33 mi
  • Chickasha, Oklahoma - North - 43 mi
  • Ardmore, Oklahoma - East - 52 mi
  • Elgin, Oklahoma - West - 27 mi
  • Oklahoma City, Oklahoma - North - 82 mi

Duncan, Oklahoma Climate and Weather Overview

MonthAvg High (°F)Avg Low (°F)Avg Rainfall (in)
January51291.3
April73493.2
July96732.3
October76513.0
Annual745032.6
Climate AttributeDetails
Climate Classification (Köppen)Humid Subtropical (Cfa)
Annual RainfallAbout 32.6 inches
Annual Sunshine DaysApproximately 233 days
Hurricane/Tornado RiskVery low hurricane risk; high tornado risk
SnowfallAbout 5 inches annually

Driving Distances from Duncan, Oklahoma

CityStateDistance (mi)Approx. Drive Time
Empire CityOklahoma610 min
ComancheOklahoma812 min
MarlowOklahoma1115 min
VelmaOklahoma1720 min
Rush SpringsOklahoma2328 min
ElginOklahoma2730 min
LawtonOklahoma3340 min
ChickashaOklahoma4345 min
ArdmoreOklahoma5255 min
Oklahoma CityOklahoma821 hr 20 min

Transportation and Connectivity in Duncan, Oklahoma

TransportationDetails
Airport NameHalliburton Field Airport
IATA CodeDUC
PortNo commercial port
Major HighwaysU.S. Highway 81, State Highway 7, State Highway 53
Train/Passenger RailNo passenger rail service
Local Bus/Transit ServiceDemand-response public transportation and regional transit services
  • U.S. Highway 81 is the primary north-south route through Duncan, connecting the city with Chickasha, Lawton, and the Texas border.
  • State Highways 7 and 53 provide regional access across southern Oklahoma.
  • Halliburton Field Airport serves general aviation, corporate, and business aircraft.
  • Will Rogers World Airport in Oklahoma City, approximately 85 miles north, is the nearest major commercial airport.

Key Landmarks and Places to Visit in Duncan, Oklahoma

Landmark NameType
Chisholm Trail Heritage CenterHistory Museum
Fuqua ParkCity Park
Stephens County Historical MuseumHistory Museum
Duncan LakeRecreation Area
Rock Island 905 Railroad MuseumRailroad Museum
Memorial ParkCommunity Park
The Palace TheatreHistoric Theater
Chisholm Trail CasinoCasino
Raymond Gary State ParkState Park
Halliburton Field Airport Observation AreaAviation Viewing Area

Colleges and Universities in Duncan, Oklahoma

InstitutionTypeLevelNotable For
Cameron University - Duncan CenterPublicUniversity CenterUndergraduate and continuing education programs
Redlands Community College - Duncan CampusPublicCommunity CollegeWorkforce training and higher education courses
Cameron UniversityPublicUniversityBusiness, education, agriculture, and sciences
University of Science and Arts of OklahomaPublicUniversityLiberal arts and interdisciplinary studies
Oklahoma State University Institute of TechnologyPublicTechnical UniversityEngineering technologies, business, and applied sciences

Waterbodies in Duncan, Oklahoma

Duncan Lake, Clear Creek, Beaver Creek, Mud Creek, Lake Humphreys, Waurika Lake, Red River, Little Beaver Creek.

Golf Courses in Duncan, Oklahoma

Duncan Golf and Tennis Club, Territory Golf Club, Lawton Country Club, Chickasha Golf & Country Club, Cotton Creek Golf Club, Twin Oaks Golf Club.

Duncan, Oklahoma - Key Historical Facts

  • Duncan was founded in 1892 following the opening of former Chickasaw Nation lands to non-Native settlement and was named after trader and rancher William Duncan.
  • The arrival of the Chicago, Rock Island and Pacific Railroad accelerated the city's growth as a regional trade and transportation center.
  • Oil discoveries during the early 20th century transformed Duncan into one of Oklahoma's leading petroleum-producing communities.
  • The city became closely associated with Halliburton, which established its headquarters in Duncan in 1929 and played a major role in the local economy for decades.
  • Agriculture, ranching, energy production, manufacturing, and healthcare continue to support the city's economy.
  • Today, Duncan is recognized for its Chisholm Trail heritage, strong energy industry connections, museums, parks, and role as the commercial center of Stephens County.

References

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