Residential delivery area · Oklahoma
ZIP Code 74631: Blackwell, OK
ZIP code 74631 uses the postal name Blackwell, Oklahoma and lies entirely in Kay County (Census 2020 ZIP-county file). About 6,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $53,964 (Census Bureau, ACS 2020-2024). By Census place, 5% of its land lies in Blackwell; 95% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Blackwell · its only residential ZIP
- County
- Kay County
- Census places
- Blackwell
- Micro area
- Ponca City, OK
- House district
- OK-3 119th Congress
- State
- Oklahoma
- Time zone
- Central
- Land area
- 103.4 sq mi · 65 people per sq mi
Where is ZIP code 74631?
74631 centers on 36.799°, -97.304° and covers 103.4 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 74646, 74632, 74653, 74601, 74647.
The map draws ZIP code areas only. For the streets inside 74631, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 74631 compare with the rest of Kay County?
| Measure | 74631 | In Kay County | In OK |
|---|---|---|---|
| People (ACS 2020-2024) | 6,689 | 3rd of 10 | 160th of 664 |
| Median household income | $54k | 4th of 5 | 234th of 343 |
| Median home value | $87k | 5th of 5 | 331st of 346 |
Its median household income is higher than in 20% of U.S. residential ZIP codes, and it is denser than 47% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 74631?
The 2020 Census counted 6,713 people in 74631; the ACS, which samples households over 2020-2024, estimates 6,689. Between the 2010 and 2020 censuses its population fell 12.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,689
- 2020 Census count
- 6,713−12.9% since 2010 (7,709)
- Households
- 2,611
- Median age
- 38.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 74631?
Of the 6,689 people the ACS estimates in 74631, 24.9% are under 18 and 21.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (74.7%), then Other or two or more (14.1%).
- Under 1824.9%
- 18 to 6453.9%
- 65 and older21.3%
- White, not Hispanic74.7%
- Other or two or more14.1%
- Hispanic or Latino10.6%
- Black, not Hispanic0.6%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 74631 earn?
Median household income is $53,964 (ACS 2020-2024), the 4th highest of the 5 ranked ZIP codes in Kay County. It is not measurably different from 2015-2019 ($53,721 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $53,964
- Income per person
- $29,855
- Below the poverty line
- 13.4%
- Unemployed (of the labor force)
- 5.5%
- Adults 25+ with a bachelor's degree
- 13.9%
- Adjusted gross income per tax return, 2022
- $53,2732,630 returns; wages 66% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 74631?
FHFA's house price index for 74631, built from repeat sales and appraisals of the same homes, rose 68% from 2015 to 2025 and rose 44% from 2020 to 2025, and moved −14.9% in 2025.
- Median home value (owners' estimate)
- $86,500
- Median gross rent
- $830
- Homes owned by their occupants
- 71.4%
- Housing units
- 3,659
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 74631?
152 business establishments had a location in this ZIP code in 2023, 8 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)25
- Accommodation and food services24
- Retail trade19
- Health care and social assistance18
- Wholesale trade11
- Finance and insurance11
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 74631?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 74646 | Nardin | 289 | $91k | 7.8 mi |
| 74632 | Braman | 553 | $89k | 10.0 mi |
| 74653 | Tonkawa | 3,710 | $59k | 10.6 mi |
| 74601 | Ponca City | 18,916 | $52k | 10.9 mi |
| 74647 | Newkirk | 3,534 | $63k | 19.0 mi |
| 74636 | Deer Creek | 189 | – | 12.2 mi (near) |
| 74643 | Lamont | 512 | $69k | 18.0 mi (near) |
| 74604 | Ponca City | 12,189 | $80k | 19.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.