56557 ZIP Code — Mahnomen, MN

Mahnomen County, Minnesota

ZIP code 56557 is located in Mahnomen, Minnesota, within Mahnomen County. It covers approximately 234.94 square miles and serves a population of 2,863 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 218.

About ZIP code 56557

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 $111,500. Owner-occupancy sits near the national average at 66%.

Median household income is $50,461. Poverty affects 21% of residents, above the national average. SNAP benefit usage at 20% of households reflects economic stress in the area. 37% 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 20 minutes is near the national average.

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 (27%) compared to national benchmarks. 15% of residents lack health insurance, above the national average.

Overall, ZIP code 56557 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.

2,863

population

234.94

sq mi land

Standard

ZIP type

Central (CT)

timezone

56557 ZIP code map

Cities in ZIP code 56557

Below are the cities the US Postal Service accepts for ZIP code 56557. Using any city not on this list may result in mail delivery delays.

City	Status
Mahnomen	Acceptable
Mahnomen	Preferred

Nearby ZIP codes

56516 Bejou (7.9 mi) 56566 Naytahwaush (13.4 mi) 56589 Waubun (14.6 mi) 56592 Winger (14.7 mi) 56651 Lengby (15.4 mi) 56542 Fosston (15.5 mi) 56545 Gary (17.3 mi) 56621 Bagley (18.7 mi) 56569 Ogema (19.8 mi)

Demographics updated 05/2026

Population
Total population	2,863
Population density	12 / sq mi
State FIPS	27
County FIPS	087

Geography
Land area	234.94 sq mi
Water area	7.16 sq mi
Latitude	47.3688
Longitude	-95.8251
Timezone	Central (CT)
Area code	218

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	56.5%	55.9%	33.6%
$50k – $100k	26.4%	28.1%	31.5%
$100k – $200k	14.3%	13.0%	26.5%
Over $200k	2.8%	3.0%	8.5%

Demographics & statistics

2,863

Population

People per sq mi

36.3

Median age

$50,461

Median household income

$24,836

Per capita income

$111,500

Median home value

$722

Median monthly rent

66.1%

Home ownership

21.2%

Poverty rate

10.3%

Unemployment

850

Housing units

11.6%

Bachelor's or higher

Age distribution

Male Female

112

Under 5

109

158

5–9

154

120

10–14

117

15–19

20–24

142

25–34

140

168

35–44

164

144

45–54

141

55–59

109

60–64

107

125

65–74

123

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	888	31.0%
18 and over	1,975	69.0%
65 and over	478	16.7%
Median age	36.3 years

Race & ethnicity

White 45.2%

American Indian / Alaska Native 34.9%

Two or more races 16.5%

Hispanic or Latino 1.8%

Asian 0.6%

Black or African American 0.5%

Native Hawaiian / Pacific Islander 0.3%

Other race 0.3%

Group	Count	%
White	1,316	45.2%
American Indian / Alaska Native	1,017	34.9%
Two or more races	481	16.5%
Hispanic or Latino	51	1.8%
Asian	18	0.6%
Black or African American	14	0.5%
Native Hawaiian / Pacific Islander	9	0.3%
Other race	8	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	56.5%	55.9%	33.6%
$50k – $100k	26.4%	28.1%	31.5%
$100k – $200k	14.3%	13.0%	26.5%
Over $200k	2.8%	3.0%	8.5%

Under $10k 6.0%

$10k–$15k 5.7%

$15k–$25k 11.6%

$25k–$35k 10.7%

$35k–$50k 15.7%

$50k–$75k 18.0%

$75k–$100k 8.4%

$100k–$150k 13.8%

$150k–$200k 6.7%

$200k+ 3.4%

Range	% of households
Under $10k	6.0%
$10k–$15k	5.7%
$15k–$25k	11.6%
$25k–$35k	10.7%
$35k–$50k	15.7%
$50k–$75k	18.0%
$75k–$100k	8.4%
$100k–$150k	13.8%
$150k–$200k	6.7%
$200k+	3.4%
Median income	$50,461

Housing

Home values

Under $50k 19.2%

$50k–$100k 27.1%

$100k–$150k 16.9%

$150k–$200k 16.5%

$200k–$300k 13.1%

$300k–$500k 4.9%

$500k–$1M 2.3%

Housing overview

Metric	Value
Median home value	$111,500
Median rent / month	$722
Owner occupied	66.1%
Renter occupied	33.9%
Vacant	16.9%
Single-family detached	76.6%
Large apartment buildings	6.8%
Mobile homes	6.3%
Median rooms	5.3
Avg household size (owned)	2.81

Year built

Era	%
2020 or later	0.0%
2010–2019	1.8%
2000–2009	13.9%
1990–1999	12.3%
1980–1989	10.1%
1970–1979	12.9%
1960–1969	11.2%
1950–1959	8.7%
1940–1949	10.3%
1939 or earlier	18.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	8.0%
2 bedrooms	30.9%
3 bedrooms	35.3%
4 bedrooms	20.1%
5+ bedrooms	4.7%

Vehicles per household

Vehicles	% of households
No vehicle	7.2%
1 vehicle	36.3%
2 vehicles	30.5%
3 or more	25.9%

Heating fuel

Fuel type	%
Utility gas	10.9%
Electricity	29.3%
Propane / LP gas	33.5%
Fuel oil	15.6%
Wood	7.8%
Solar	0.2%
No fuel used	1.8%

Households & families

Household type	Count	%
Married-couple family	331	33.7%
Cohabiting couple	108	11.0%
Male householder, no spouse	233	23.7%
Female householder, no spouse	311	31.6%
Households with children under 18	340	34.6%
Households with seniors (65+)	331	33.7%
Average household size	2.83

Marital status

Status	Male	Female
Never married	47.5%	34.5%
Married	32.8%	35.9%
Separated	2.5%	1.0%
Widowed	3.5%	13.0%
Divorced	13.8%	15.7%

Education

Less than 9th grade 4.3%

Some HS, no diploma 11.4%

HS graduate 36.5%

Some college, no degree 25.6%

Associate's degree 10.5%

Bachelor's degree 9.0%

Graduate / professional 2.7%

Metric	%
HS diploma or higher	84.3%
Bachelor's or higher	11.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	79	9.5%
Kindergarten	51	6.1%
Elementary school	465	55.8%
High school	157	18.8%
College / grad school	81	9.7%

Employment

Industry of employment

Education & healthcare 23.4%

Arts, food & hospitality 18.6%

Agriculture & mining 10.8%

Retail trade 8.5%

Construction 8.4%

Transportation & utilities 6.7%

Public administration 6.0%

Manufacturing 5.5%

Finance & real estate 3.7%

Other services 3.5%

Professional & management 2.8%

Wholesale trade 1.6%

Information 0.5%

Occupation

Category	%
Management, business & arts	31.9%
Service	21.9%
Sales & office	20.0%
Natural resources & construction	16.4%
Production & transportation	9.6%

Employment type

Type	%
Private sector	59.6%
Government	32.1%
Self-employed	7.8%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	72.7%
Carpool	12.0%
Public transit	1.3%
Walk	6.0%
Work from home	7.8%
Other means	0.2%
Avg commute (minutes)	20.1

Poverty

All people 21.2%

Under 18 years 27.9%

18 and over 18.3%

Married-couple families 2.4%

Female-led households 35.4%

Income support

Source	% of households
Social Security	36.8%
Retirement income	20.9%
Supplemental Security	9.4%
Cash public assistance	8.4%
Food stamps / SNAP	20.3%

Health indicators

Condition	%
Obesity	42.2%
High blood pressure	37.9%
High cholesterol	32.5%
Diabetes	14.7%
Heart disease	9.5%
Stroke	5.0%
Asthma	11.1%
Arthritis	29.7%
Kidney disease	4.2%
Pulmonary disease	9.6%
Cancer	7.6%

Behavior / access	%
Smoking	27.0%
Binge drinking	17.1%
No physical activity	30.6%
Less than 7 hrs sleep	32.4%
Depression	24.2%
Fair or poor health	21.4%
Poor mental health	16.7%
Poor physical health	14.8%
No health insurance	13.9%
Visited doctor (checkup)	72.7%
Visited dentist	56.2%
Cholesterol screening	87.9%
Teeth loss	19.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	123	6.2%

Disability	%
Any disability	16.5%
Under 18	5.5%
18–64 years	16.4%
65 and over	39.1%

Health insurance coverage

Type	%
Private insurance	42.2%
Public insurance	54.6%
No insurance	15.2%
Uninsured under 19	15.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,642	92.3%
Spanish	19	0.7%
Other Indo-European	0	0.0%
Asian & Pacific Islander	11	0.4%
Other languages	8	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,827	98.7%
Born in same state	2,826	98.7%
Born in different state	2,321	81.1%
Foreign born	1	0.0%
Naturalized citizen	36	1.3%
Not a US citizen	27	75.0%

Ancestry

Ancestry	Count	%
Polish	422	14.7%
Italian	115	4%
French	74	2.6%
English	49	1.7%

Ancestry	Count	%
Arab	28	1%
German	22	0.8%
Dutch	20	0.7%

Technology access

Metric	% of households
Computer access	34.3%
Internet access	87.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 56557

What city is ZIP code 56557 in?

ZIP code 56557 is primarily assigned to Mahnomen, Minnesota.

What county is ZIP code 56557 in?

ZIP code 56557 falls within Mahnomen County, Minnesota.

Is ZIP code 56557 family-oriented?

31% of residents in ZIP code 56557 are under 18, reflecting a younger, family-oriented community.

What is the poverty rate in ZIP code 56557?

21% of residents in ZIP code 56557 live below the poverty line, above the national average.

How educated is the population of ZIP code 56557?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 56557 have a large retiree population?

37% of households in ZIP code 56557 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 56557 in?

ZIP code 56557 observes the CST timezone.