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North Dakota ZIP Codes
Cass County
Casselton, ND
58012
58012 ZIP Code — Casselton, ND
Cass County, North Dakota
ZIP code 58012 is located in
Casselton ,
North Dakota ,
within Cass County .
It covers approximately 73.34 square miles and serves a population of
2,736 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 701 .
About ZIP code 58012
The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $283,100. Owner-occupancy sits near the national average at 60%.
The gap between median ($63,365) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 3% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.
58012 ZIP code map
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Cities in ZIP code 58012
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
2,736
Population density
37 / sq mi
State FIPS
38
County FIPS
017
Geography
Land area
73.34 sq mi
Water area
0.13 sq mi
Latitude
46.9480
Longitude
-97.1581
Timezone
Central (CT)
Area code
701
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
36.6%
36.6%
37.8%
$50k – $100k
31.0%
33.6%
32.8%
$100k – $200k
25.6%
22.5%
23.3%
Over $200k
6.8%
7.4%
6.0%
Demographics & statistics
$63,365
Median household income
$283,100
Median home value
40.7%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 788 28.8%
18 and over 1,948 71.2%
65 and over 312 11.4%
Median age 33.4 years
Race & ethnicity
American Indian / Alaska Native
0.8%
Group Count %
White 2,682 98%
Two or more races 32 1.2%
American Indian / Alaska Native 22 0.8%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
36.6%
36.6%
37.8%
$50k – $100k
31.0%
33.6%
32.8%
$100k – $200k
25.6%
22.5%
23.3%
Over $200k
6.8%
7.4%
6.0%
Range % of households
Under $10k 2.7%
$10k–$15k 2.6%
$15k–$25k 2.9%
$25k–$35k 3.4%
$35k–$50k 7.2%
$50k–$75k 35.8%
$75k–$100k 6.5%
$100k–$150k 15.8%
$150k–$200k 13.1%
$200k+ 10.1%
Median income $63,365
Housing
Housing overview
Metric Value
Median home value $283,100
Median rent / month $753
Owner occupied 60.4%
Renter occupied 39.6%
Vacant 2.9%
Single-family detached 58.6%
Large apartment buildings 15.1%
Mobile homes 0.7%
Median rooms 6.5
Avg household size (owned) 2.76
Year built
Era %
2020 or later 0.0%
2010–2019 10.3%
2000–2009 13.8%
1990–1999 18.0%
1980–1989 4.6%
1970–1979 18.2%
1960–1969 5.3%
1950–1959 8.1%
1940–1949 1.4%
1939 or earlier 20.4%
Bedrooms
Size % of units
No bedroom (studio) 1.5%
1 bedroom 14.3%
2 bedrooms 28.4%
3 bedrooms 16.4%
4 bedrooms 27.2%
5+ bedrooms 12.2%
Vehicles per household
Vehicles % of households
No vehicle 2.9%
1 vehicle 16.7%
2 vehicles 60.0%
3 or more 20.4%
Heating fuel
Fuel type %
Utility gas 47.6%
Electricity 42.1%
Propane / LP gas 4.6%
Fuel oil 3.7%
Wood 1.2%
Households & families
Household type Count %
Married-couple family 617 51.2%
Cohabiting couple 30 2.5%
Male householder, no spouse 421 34.9%
Female householder, no spouse 137 11.4%
Households with children under 18 382 31.7%
Households with seniors (65+) 243 20.2%
Average household size 2.27
Marital status
Status Male Female
Never married 35.7% 14.6%
Married 53.3% 68.5%
Separated 0.2% 0.0%
Widowed 0.9% 6.8%
Divorced 9.9% 10.1%
Education
Some college, no degree
28.7%
Graduate / professional
11.8%
Metric %
HS diploma or higher 95.7%
Bachelor's or higher 40.7%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 26 4.0%
Kindergarten 64 9.8%
Elementary school 384 58.5%
High school 110 16.8%
College / grad school 72 11.0%
Employment
Industry of employment
Education & healthcare
22.9%
Transportation & utilities
21.9%
Professional & management
8.0%
Finance & real estate
6.3%
Agriculture & mining
4.1%
Public administration
3.9%
Arts, food & hospitality
3.4%
Occupation
Category %
Management, business & arts 41.2%
Service 10.7%
Sales & office 12.6%
Natural resources & construction 17.2%
Production & transportation 18.3%
Employment type
Type %
Private sector 75.9%
Government 14.9%
Self-employed 8.3%
Unpaid family workers 0.8%
Commute
Method %
Drive alone 81.3%
Carpool 6.9%
Public transit 0.0%
Walk 4.1%
Work from home 5.6%
Other means 2.0%
Avg commute (minutes) 31.3
Poverty
Married-couple families
2.3%
Female-led households
0.0%
Income support
Source % of households
Social Security 21.6%
Retirement income 14.0%
Supplemental Security 1.2%
Cash public assistance 1.4%
Food stamps / SNAP 2.3%
Health indicators
Condition %
Obesity 32.8%
High blood pressure 27.4%
High cholesterol 28.8%
Diabetes 7.7%
Heart disease 4.8%
Stroke 2.1%
Asthma 8.8%
Arthritis 20.5%
Kidney disease 2.2%
Pulmonary disease 4.4%
Cancer 6.6%
Behavior / access %
Smoking 15.4%
Binge drinking 22.1%
No physical activity 19.8%
Less than 7 hrs sleep 29.6%
Depression 19.4%
Fair or poor health 9.1%
Poor mental health 11.3%
Poor physical health 6.9%
No health insurance 8.1%
Visited doctor (checkup) 69.3%
Visited dentist 73.7%
Cholesterol screening 90.1%
Teeth loss 9.1%
Veterans & disability
Veterans Count %
Civilian veterans 161 8.3%
Disability %
Any disability 10.6%
Under 18 4.2%
18–64 years 6.1%
65 and over 50.3%
Health insurance coverage
Type %
Private insurance 82.2%
Public insurance 16.0%
No insurance 11.7%
Uninsured under 19 7.3%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 2,520 92.1%
Spanish 24 1.0%
Other Indo-European 15 0.6%
Asian & Pacific Islander 9 0.4%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 2,702 98.8%
Born in same state 2,696 98.5%
Born in different state 1,837 67.1%
Foreign born 6 0.2%
Naturalized citizen 34 1.2%
Not a US citizen 19 55.9%
Ancestry
Ancestry Count %
Polish 892 32.6%
Italian 170 6.2%
French 144 5.3%
Arab 27 1%
Ancestry Count %
Dutch 26 1%
English 15 0.5%
German 2 0.1%
Technology access
Metric % of households
Computer access 44.0%
Internet access 98.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 58012
What city is ZIP code 58012 in?
ZIP code 58012 is primarily assigned to Casselton, North Dakota.
What county is ZIP code 58012 in?
ZIP code 58012 falls within Cass County, North Dakota.
What is the population of ZIP code 58012?
ZIP code 58012 has an estimated population of 2,736 residents, with a density of 37 people per square mile.
What is the typical home value in ZIP code 58012?
The median home value in ZIP code 58012 is $283,100.
What is the median household income in ZIP code 58012?
The median household income in ZIP code 58012 is $63,365, below the national median of ~$75,000.
What timezone is ZIP code 58012 in?
ZIP code 58012 observes the CST timezone.
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