ZIP code · Blackwell · Oklahoma · United States
ZIP code 74631 — Blackwell
ZIP code 74631 serves Blackwell, Oklahoma.
- Postal code
- 74631Single source Value from one source, not cross-checked.
- City
- Blackwell
- County
- Kay FIPS 40071
- State
- Oklahoma
- Country
- United States
- Coordinates
- 36.8006, -97.2867 — precision precise (locality)
View on OpenStreetMap - Population
- 6,795 (ZCTA, ACS 5-year)
- Population density
- 66 / sq mi
- Land area
- 103.4 sq mi (267.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $50,969
- Per-capita income
- $28,543
- Median age
- 36.9
- Households
- 2,639
- Housing units
- 3,569
- Median home value
- $77,100
- Median gross rent
- $868 / month
- Congressional district
- OK-3 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °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 74631 with another ZIP · ZIPs within 25 miles · distance from 74631
Map of ZIP code 74631
Climate — monthly normals
Warmest month Jul (avg high 94°F), coldest Jan (avg low 22°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 47 | 52 | 61 | 71 | 79 | 89 | 94 | 93 | 85 | 73 | 60 | 49 |
| Avg low °F | 22 | 26 | 34 | 44 | 55 | 65 | 69 | 68 | 60 | 47 | 34 | 26 |
| Precip in | 1.3 | 1.4 | 2.8 | 3.9 | 5.4 | 5.1 | 4.4 | 4.1 | 3.2 | 3.6 | 1.9 | 1.7 |
NOAA 1991–2020 climate normals from the nearest station: BLACKWELL 1SSW (1.2 mi) · NOAA NCEI
Places in ZIP 74631
- 7 schools
- 1 hospitals & clinics
- 4 restaurants & cafés
- 9 parks
- 3 playgrounds
- 14 places of worship
- 1 banks
- 2 gas stations
- 1 EV charging stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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 · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page