ZIP code · Duncan · Oklahoma · United States
ZIP code 73534 — Duncan
ZIP code 73534 serves Duncan, Oklahoma.
- Postal code
- 73534Single source Value from one source, not cross-checked.
- City
- Duncan
- County
- Stephens
- State
- Oklahoma
- Country
- United States
- Coordinates
- 34.5189, -97.9733 — 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 73534 with another ZIP · ZIPs within 25 miles · distance from 73534
Climate — monthly normals
Warmest month Jul (avg high 94°F), coldest Jan (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 52 | 57 | 65 | 73 | 81 | 89 | 94 | 93 | 86 | 76 | 64 | 54 |
| Avg low °F | 28 | 32 | 41 | 49 | 59 | 68 | 72 | 71 | 63 | 51 | 39 | 31 |
| Precip in | 1.5 | 1.8 | 2.8 | 3.5 | 5.6 | 4.5 | 2.6 | 2.9 | 3.8 | 3.9 | 2.3 | 2.0 |
NOAA 1991–2020 climate normals from the nearest station: DUNCAN (1.5 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