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Oklahoma ZIP Codes
Grant County
Lamont, OK
74643
74643 ZIP Code — Lamont, OK
Grant County, Oklahoma
ZIP code 74643 is located in
Lamont ,
Oklahoma ,
within Grant County .
It covers approximately 116.58 square miles and serves a population of
529 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 580 .
About ZIP code 74643
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $66,300. Owner-occupancy sits near the national average at 73%.
The gap between median ($64,926) and mean household income suggests income inequality — a small number of higher earners pull the average up. 33% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is natural resources, construction, and trades, with education and healthcare as the leading industry. The average commute of 18 minutes is near the national average.
College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 74643 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.
74643 ZIP code map
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Cities in ZIP code 74643
Below are the cities the US Postal Service accepts for ZIP code 74643. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
529
Population density
5 / sq mi
State FIPS
40
County FIPS
053
Geography
Land area
116.58 sq mi
Water area
0.71 sq mi
Latitude
36.7045
Longitude
-97.5525
Timezone
Central (CT)
Area code
580
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.7%
46.2%
46.5%
$50k – $100k
42.6%
32.3%
31.0%
$100k – $200k
32.6%
19.8%
18.1%
Over $200k
1.1%
1.6%
4.5%
Demographics & statistics
$64,926
Median household income
18.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 76 14.4%
18 and over 453 85.6%
65 and over 63 11.9%
Median age 45.8 years
Race & ethnicity
American Indian / Alaska Native
1.4%
Group Count %
White 454 77.3%
Hispanic or Latino 58 9.9%
Other race 55 9.4%
Two or more races 12 2%
American Indian / Alaska Native 8 1.4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.7%
46.2%
46.5%
$50k – $100k
42.6%
32.3%
31.0%
$100k – $200k
32.6%
19.8%
18.1%
Over $200k
1.1%
1.6%
4.5%
Range % of households
Under $10k 5.3%
$10k–$15k 3.5%
$15k–$25k 3.5%
$25k–$35k 11.1%
$35k–$50k 5.8%
$50k–$75k 23.4%
$75k–$100k 18.7%
$100k–$150k 5.8%
$150k–$200k 15.8%
$200k+ 7.0%
Median income $64,926
Housing
Housing overview
Metric Value
Median home value $66,300
Median rent / month $945
Owner occupied 73.1%
Renter occupied 26.9%
Vacant 32.7%
Single-family detached 81.9%
Large apartment buildings 0.0%
Mobile homes 14.2%
Median rooms 6.0
Avg household size (owned) 2.82
Year built
Era %
2020 or later 0.0%
2010–2019 6.3%
2000–2009 7.9%
1990–1999 2.4%
1980–1989 12.2%
1970–1979 29.9%
1960–1969 8.3%
1950–1959 6.7%
1940–1949 6.7%
1939 or earlier 19.7%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 33.5%
3 bedrooms 56.3%
4 bedrooms 9.8%
5+ bedrooms 0.4%
Vehicles per household
Vehicles % of households
No vehicle 3.5%
1 vehicle 29.2%
2 vehicles 35.1%
3 or more 32.2%
Heating fuel
Fuel type %
Utility gas 38.6%
Electricity 15.8%
Propane / LP gas 22.8%
Fuel oil 22.8%
Households & families
Household type Count %
Married-couple family 71 41.5%
Cohabiting couple 11 6.4%
Male householder, no spouse 48 28.1%
Female householder, no spouse 41 24.0%
Households with children under 18 38 22.2%
Households with seniors (65+) 51 29.8%
Average household size 3.09
Marital status
Status Male Female
Never married 41.0% 19.5%
Married 29.5% 66.1%
Separated 0.0% 0.0%
Widowed 3.7% 1.4%
Divorced 25.8% 13.1%
Education
Some college, no degree
10.8%
Graduate / professional
2.9%
Metric %
HS diploma or higher 95.8%
Bachelor's or higher 18.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 52 59.8%
High school 24 27.6%
College / grad school 11 12.6%
Employment
Industry of employment
Education & healthcare
23.4%
Arts, food & hospitality
16.8%
Agriculture & mining
13.1%
Professional & management
12.0%
Transportation & utilities
5.1%
Finance & real estate
2.8%
Public administration
0.3%
Occupation
Category %
Management, business & arts 9.1%
Service 16.8%
Sales & office 16.0%
Natural resources & construction 34.5%
Production & transportation 23.6%
Employment type
Type %
Private sector 88.3%
Government 9.4%
Self-employed 2.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 79.4%
Carpool 7.4%
Public transit 0.0%
Walk 0.6%
Work from home 12.6%
Other means 0.0%
Avg commute (minutes) 17.7
Poverty
Married-couple families
0.0%
Female-led households
46.2%
Income support
Source % of households
Social Security 33.3%
Retirement income 18.1%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 7.6%
Health indicators
Condition %
Obesity 34.3%
High blood pressure 38.6%
High cholesterol 36.5%
Diabetes 11.1%
Heart disease 7.5%
Stroke 3.4%
Asthma 10.3%
Arthritis 27.5%
Kidney disease 3.1%
Pulmonary disease 8.2%
Cancer 7.4%
Behavior / access %
Smoking 19.0%
Binge drinking 13.4%
No physical activity 28.0%
Less than 7 hrs sleep 31.4%
Depression 23.8%
Fair or poor health 16.1%
Poor mental health 15.5%
Poor physical health 11.8%
No health insurance 15.5%
Visited doctor (checkup) 76.7%
Visited dentist 62.6%
Cholesterol screening 89.7%
Teeth loss 15.6%
Veterans & disability
Veterans Count %
Civilian veterans 11 2.4%
Disability %
Any disability 12.7%
Under 18 10.5%
18–64 years 4.6%
65 and over 65.1%
Health insurance coverage
Type %
Private insurance 80.5%
Public insurance 21.7%
No insurance 9.1%
Uninsured under 19 15.8%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 517 97.7%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 529 100.0%
Born in same state 528 99.8%
Born in different state 357 67.5%
Foreign born 1 0.2%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
French 57 10.8%
Italian 9 1.7%
Ancestry Count %
Arab 9 1.7%
Polish 3 0.6%
Technology access
Metric % of households
Computer access 32.3%
Internet access 89.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 74643
What city is ZIP code 74643 in?
ZIP code 74643 is primarily assigned to Lamont, Oklahoma.
What county is ZIP code 74643 in?
ZIP code 74643 falls within Grant County, Oklahoma.
What is the typical home value in ZIP code 74643?
The median home value in ZIP code 74643 is $66,300.
What is the population of ZIP code 74643?
ZIP code 74643 has an estimated population of 529 residents, with a density of 5 people per square mile.
What is the median household income in ZIP code 74643?
The median household income in ZIP code 74643 is $64,926, below the national median of ~$75,000.
What timezone is ZIP code 74643 in?
ZIP code 74643 observes the CST timezone.
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