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Minnesota ZIP Codes
Cass County
Federal Dam, MN
56641
56641 ZIP Code — Federal Dam, MN
Cass County, Minnesota
ZIP code 56641 is located in
Federal Dam ,
Minnesota ,
within Cass County .
It covers approximately 31.54 square miles and serves a population of
406 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 218 .
About ZIP code 56641
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $163,200. Owner-occupancy sits near the national average at 75%.
Median household income is $46,875. SNAP benefit usage at 32% of households reflects economic stress in the area. 57% 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. An above-average commute of 35 minutes suggests many residents work outside the immediate area.
College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (23%) 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 56641 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.
56641 ZIP code map
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Cities in ZIP code 56641
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Demographics
updated 05/2026
Population
Total population
406
Population density
13 / sq mi
State FIPS
27
County FIPS
021
Geography
Land area
31.54 sq mi
Water area
17.61 sq mi
Latitude
47.2062
Longitude
-94.2546
Timezone
Central (CT)
Area code
218
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
36.0%
47.9%
33.6%
$50k – $100k
55.8%
30.8%
31.5%
$100k – $200k
7.0%
18.6%
26.5%
Over $200k
1.2%
2.7%
8.5%
Demographics & statistics
$46,875
Median household income
$163,200
Median home value
11.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 106 26.1%
18 and over 300 73.9%
65 and over 97 23.9%
Median age 42.5 years
Race & ethnicity
American Indian / Alaska Native
31.7%
Black or African American
0.5%
Group Count %
White 170 41.5%
American Indian / Alaska Native 130 31.7%
Two or more races 96 23.4%
Asian 8 2%
Hispanic or Latino 4 1%
Black or African American 2 0.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
36.0%
47.9%
33.6%
$50k – $100k
55.8%
30.8%
31.5%
$100k – $200k
7.0%
18.6%
26.5%
Over $200k
1.2%
2.7%
8.5%
Range % of households
Under $10k 4.8%
$10k–$15k 5.5%
$15k–$25k 14.5%
$25k–$35k 10.3%
$35k–$50k 15.2%
$50k–$75k 21.4%
$75k–$100k 14.5%
$100k–$150k 5.5%
$150k–$200k 4.8%
$200k+ 3.4%
Median income $46,875
Housing
Housing overview
Metric Value
Median home value $163,200
Median rent / month $775
Owner occupied 74.5%
Renter occupied 25.5%
Vacant 52.9%
Single-family detached 86.4%
Large apartment buildings 0.0%
Mobile homes 10.7%
Median rooms 5.6
Avg household size (owned) 2.66
Year built
Era %
2020 or later 0.3%
2010–2019 10.4%
2000–2009 33.8%
1990–1999 9.4%
1980–1989 10.7%
1970–1979 13.6%
1960–1969 8.1%
1950–1959 4.9%
1940–1949 4.9%
1939 or earlier 3.9%
Bedrooms
Size % of units
No bedroom (studio) 2.6%
1 bedroom 8.1%
2 bedrooms 20.1%
3 bedrooms 53.2%
4 bedrooms 13.3%
5+ bedrooms 2.6%
Vehicles per household
Vehicles % of households
No vehicle 11.7%
1 vehicle 23.4%
2 vehicles 46.2%
3 or more 18.6%
Heating fuel
Fuel type %
Utility gas 3.4%
Electricity 24.8%
Propane / LP gas 55.2%
Fuel oil 4.1%
Wood 10.3%
Households & families
Household type Count %
Married-couple family 64 44.1%
Cohabiting couple 8 5.5%
Male householder, no spouse 28 19.3%
Female householder, no spouse 45 31.0%
Households with children under 18 38 26.2%
Households with seniors (65+) 70 48.3%
Average household size 2.80
Marital status
Status Male Female
Never married 40.7% 30.2%
Married 42.5% 45.6%
Separated 0.0% 0.0%
Widowed 2.4% 16.8%
Divorced 14.4% 7.4%
Education
Some college, no degree
21.8%
Graduate / professional
3.4%
Metric %
HS diploma or higher 86.6%
Bachelor's or higher 11.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 9 12.2%
Kindergarten 8 10.8%
Elementary school 41 55.4%
High school 16 21.6%
College / grad school 0 0.0%
Employment
Industry of employment
Education & healthcare
27.5%
Arts, food & hospitality
13.3%
Transportation & utilities
10.8%
Professional & management
10.0%
Public administration
7.5%
Finance & real estate
0.8%
Occupation
Category %
Management, business & arts 27.5%
Service 15.8%
Sales & office 16.7%
Natural resources & construction 16.7%
Production & transportation 23.3%
Employment type
Type %
Private sector 55.8%
Government 28.3%
Self-employed 15.8%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 70.3%
Carpool 4.2%
Public transit 3.4%
Walk 5.9%
Work from home 10.2%
Other means 5.9%
Avg commute (minutes) 35.4
Poverty
Married-couple families
9.4%
Female-led households
22.2%
Income support
Source % of households
Social Security 57.2%
Retirement income 28.3%
Supplemental Security 14.5%
Cash public assistance 7.6%
Food stamps / SNAP 31.7%
Health indicators
Condition %
Obesity 35.8%
High blood pressure 37.6%
High cholesterol 33.5%
Diabetes 14.5%
Heart disease 9.0%
Stroke 4.6%
Asthma 10.1%
Arthritis 28.7%
Kidney disease 3.9%
Pulmonary disease 7.9%
Cancer 7.9%
Behavior / access %
Smoking 23.0%
Binge drinking 17.5%
No physical activity 25.3%
Less than 7 hrs sleep 30.5%
Depression 22.0%
Fair or poor health 17.8%
Poor mental health 14.6%
Poor physical health 13.0%
No health insurance 11.0%
Visited doctor (checkup) 73.7%
Visited dentist 61.0%
Cholesterol screening 91.0%
Teeth loss 15.5%
Veterans & disability
Veterans Count %
Civilian veterans 34 11.3%
Disability %
Any disability 19.0%
Under 18 4.7%
18–64 years 20.2%
65 and over 32.0%
Health insurance coverage
Type %
Private insurance 49.5%
Public insurance 65.5%
No insurance 3.9%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 383 94.3%
Spanish 13 3.4%
Other Indo-European 0 0.0%
Asian & Pacific Islander 3 0.8%
Other languages 8 2.1%
Place of birth & citizenship
Origin Count %
Native born (US) 391 96.3%
Born in same state 389 95.8%
Born in different state 307 75.6%
Foreign born 2 0.5%
Naturalized citizen 15 3.7%
Not a US citizen 7 46.7%
Ancestry
Ancestry Count %
French 20 4.9%
Polish 18 4.4%
Italian 17 4.2%
English 10 2.5%
Ancestry Count %
Dutch 6 1.5%
German 5 1.2%
Arab 5 1.2%
Technology access
Metric % of households
Computer access 35.7%
Internet access 86.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 56641
What city is ZIP code 56641 in?
ZIP code 56641 is primarily assigned to Federal Dam, Minnesota.
What county is ZIP code 56641 in?
ZIP code 56641 falls within Cass County, Minnesota.
Does ZIP code 56641 have a large retiree population?
57% of households in ZIP code 56641 receive Social Security income, suggesting a significant retiree or disability population.
How educated is the population of ZIP code 56641?
12% 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 56641?
16% of residents in ZIP code 56641 live below the poverty line, above the national average.
Does ZIP code 56641 have a large veteran population?
11% of civilians in ZIP code 56641 are veterans, above the national average of ~7%.
What timezone is ZIP code 56641 in?
ZIP code 56641 observes the CST timezone.
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