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Oklahoma ZIP Codes
Kay County
Blackwell, OK
74631
74631 ZIP Code — Blackwell, OK
Kay County, Oklahoma
ZIP code 74631 is located in
Blackwell ,
Oklahoma ,
within Kay County .
It covers approximately 103.37 square miles and serves a population of
7,013 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 580 .
About ZIP code 74631
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $84,800. Owner-occupancy sits near the national average at 68%.
Median household income is $49,350. SNAP benefit usage at 24% of households reflects economic stress in the area. 41% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.
College attainment at 14% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (22%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 11% of civilians, above the national average of 7%.
Overall, ZIP code 74631 reflects a community defined by a trades-oriented workforce, a strong veteran community, a significant Social Security-dependent population, and elevated reliance on food assistance.
74631 ZIP code map
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Cities in ZIP code 74631
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
7,013
Population density
68 / sq mi
State FIPS
40
County FIPS
071
Geography
Land area
103.37 sq mi
Water area
0.05 sq mi
Latitude
36.7967
Longitude
-97.3014
Timezone
Central (CT)
Area code
580
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.0%
51.3%
46.5%
$50k – $100k
32.5%
31.9%
31.0%
$100k – $200k
9.3%
13.6%
18.1%
Over $200k
1.3%
3.2%
4.5%
Demographics & statistics
$49,350
Median household income
13.6%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,849 26.4%
18 and over 5,164 73.6%
65 and over 1,426 20.3%
Median age 37.1 years
Race & ethnicity
American Indian / Alaska Native
5.3%
Black or African American
0.9%
Group Count %
White 5,757 80.1%
Two or more races 645 9%
American Indian / Alaska Native 378 5.3%
Hispanic or Latino 175 2.4%
Other race 169 2.4%
Black or African American 64 0.9%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.0%
51.3%
46.5%
$50k – $100k
32.5%
31.9%
31.0%
$100k – $200k
9.3%
13.6%
18.1%
Over $200k
1.3%
3.2%
4.5%
Range % of households
Under $10k 5.5%
$10k–$15k 1.9%
$15k–$25k 11.0%
$25k–$35k 13.7%
$35k–$50k 19.1%
$50k–$75k 21.9%
$75k–$100k 7.7%
$100k–$150k 12.8%
$150k–$200k 3.6%
$200k+ 2.7%
Median income $49,350
Housing
Housing overview
Metric Value
Median home value $84,800
Median rent / month $829
Owner occupied 67.8%
Renter occupied 32.2%
Vacant 27.5%
Single-family detached 87.0%
Large apartment buildings 2.7%
Mobile homes 5.7%
Median rooms 5.6
Avg household size (owned) 2.54
Year built
Era %
2020 or later 0.0%
2010–2019 1.2%
2000–2009 4.8%
1990–1999 3.9%
1980–1989 4.3%
1970–1979 11.3%
1960–1969 12.7%
1950–1959 19.7%
1940–1949 9.6%
1939 or earlier 32.5%
Bedrooms
Size % of units
No bedroom (studio) 1.8%
1 bedroom 9.7%
2 bedrooms 26.2%
3 bedrooms 52.8%
4 bedrooms 9.2%
5+ bedrooms 0.2%
Vehicles per household
Vehicles % of households
No vehicle 5.8%
1 vehicle 36.6%
2 vehicles 34.4%
3 or more 23.2%
Heating fuel
Fuel type %
Utility gas 82.3%
Electricity 13.5%
Propane / LP gas 2.9%
Fuel oil 0.3%
Wood 0.6%
Households & families
Household type Count %
Married-couple family 1,095 42.4%
Cohabiting couple 149 5.8%
Male householder, no spouse 600 23.2%
Female householder, no spouse 738 28.6%
Households with children under 18 732 28.4%
Households with seniors (65+) 979 37.9%
Average household size 2.69
Marital status
Status Male Female
Never married 33.6% 24.3%
Married 45.5% 43.1%
Separated 2.2% 1.3%
Widowed 5.3% 13.8%
Divorced 13.3% 17.5%
Education
Some HS, no diploma
11.5%
Some college, no degree
24.1%
Graduate / professional
4.6%
Metric %
HS diploma or higher 87.6%
Bachelor's or higher 13.6%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 36 2.2%
Kindergarten 0 0.0%
Elementary school 887 54.1%
High school 447 27.2%
College / grad school 271 16.5%
Employment
Industry of employment
Education & healthcare
20.2%
Arts, food & hospitality
12.5%
Transportation & utilities
8.2%
Agriculture & mining
5.4%
Public administration
4.1%
Professional & management
2.9%
Finance & real estate
1.6%
Occupation
Category %
Management, business & arts 24.9%
Service 21.4%
Sales & office 19.4%
Natural resources & construction 14.4%
Production & transportation 19.8%
Employment type
Type %
Private sector 76.6%
Government 20.1%
Self-employed 3.0%
Unpaid family workers 0.3%
Commute
Method %
Drive alone 78.4%
Carpool 17.0%
Public transit 0.0%
Walk 1.2%
Work from home 2.7%
Other means 0.7%
Avg commute (minutes) 21.1
Poverty
Married-couple families
5.6%
Female-led households
28.9%
Income support
Source % of households
Social Security 40.8%
Retirement income 22.8%
Supplemental Security 5.1%
Cash public assistance 4.3%
Food stamps / SNAP 23.6%
Health indicators
Condition %
Obesity 41.1%
High blood pressure 41.1%
High cholesterol 39.9%
Diabetes 13.0%
Heart disease 8.6%
Stroke 4.1%
Asthma 11.4%
Arthritis 30.9%
Kidney disease 3.6%
Pulmonary disease 10.0%
Cancer 7.6%
Behavior / access %
Smoking 22.2%
Binge drinking 13.2%
No physical activity 31.7%
Less than 7 hrs sleep 32.4%
Depression 25.4%
Fair or poor health 20.1%
Poor mental health 16.8%
Poor physical health 14.1%
No health insurance 18.5%
Visited doctor (checkup) 76.0%
Visited dentist 55.5%
Cholesterol screening 88.0%
Teeth loss 21.1%
Veterans & disability
Veterans Count %
Civilian veterans 578 11.2%
Disability %
Any disability 18.0%
Under 18 3.5%
18–64 years 17.3%
65 and over 39.3%
Health insurance coverage
Type %
Private insurance 55.8%
Public insurance 48.8%
No insurance 12.7%
Uninsured under 19 11.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 6,533 93.2%
Spanish 171 2.6%
Other Indo-European 171 2.6%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 6,710 95.7%
Born in same state 6,708 95.7%
Born in different state 4,594 65.5%
Foreign born 2 0.0%
Naturalized citizen 303 4.3%
Not a US citizen 65 21.5%
Ancestry
Ancestry Count %
Arab 665 9.5%
Italian 531 7.6%
French 524 7.5%
Ancestry Count %
Polish 61 0.9%
English 36 0.5%
German 3 0%
Technology access
Metric % of households
Computer access 36.8%
Internet access 86.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 74631
What city is ZIP code 74631 in?
ZIP code 74631 is primarily assigned to Blackwell, Oklahoma.
What county is ZIP code 74631 in?
ZIP code 74631 falls within Kay County, Oklahoma.
How educated is the population of ZIP code 74631?
14% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the poverty rate in ZIP code 74631?
16% of residents in ZIP code 74631 live below the poverty line, above the national average.
Does ZIP code 74631 have a large retiree population?
41% of households in ZIP code 74631 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 74631 have a large veteran population?
11% of civilians in ZIP code 74631 are veterans, above the national average of ~7%.
What timezone is ZIP code 74631 in?
ZIP code 74631 observes the CST timezone.
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