ZIP code · Duncan · Oklahoma · United States
ZIP code 73536 — Duncan
ZIP code 73536 serves Duncan, Oklahoma.
- Postal code
- 73536Single source Value from one source, not cross-checked.
- City
- Duncan
- County
- Stephens
- State
- Oklahoma
- Country
- United States
- Coordinates
- 34.4853, -97.8522 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 8a (10 to 15 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 580Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 73536 with another ZIP · ZIPs within 25 miles · distance from 73536
Climate — monthly normals
Warmest month Aug (avg high 95°F), coldest Jan (avg low 30°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 52 | 57 | 66 | 73 | 81 | 89 | 94 | 95 | 86 | 75 | 64 | 54 |
| Avg low °F | 30 | 34 | 43 | 50 | 59 | 68 | 72 | 71 | 63 | 52 | 40 | 31 |
NOAA 1991–2020 climate normals from the nearest station: VELMA 7NW MESONET (5.8 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page