56737 ZIP Code — Middle River, MN

Marshall County, Minnesota

ZIP code 56737 is located in Middle River, Minnesota, within Marshall County. It covers approximately 238.03 square miles and serves a population of 719 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 218.

About ZIP code 56737

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 $121,200. Owner-occupancy is high at 85%, well above the national average.

Median household income is $58,438. 42% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with construction as the leading industry. An above-average commute of 38 minutes suggests many residents work outside the immediate area.

College attainment at 14% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 56737 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

719
population
238.03
sq mi land
Standard
ZIP type
Central (CT)
timezone
56737 ZIP code map
Cities in ZIP code 56737

Below are the cities the US Postal Service accepts for ZIP code 56737. Using any city not on this list may result in mail delivery delays.

City Status
Middle River Preferred
Nearby ZIP codes
56759 Strathcona (9.9 mi) 56738 Newfolden (15 mi) 56726 Greenbush (16.9 mi) 56761 Wannaska (18.3 mi) 56758 Strandquist (19 mi)
Demographics updated 05/2026
Population
Total population 719
Population density 3 / sq mi
State FIPS 27
County FIPS 089
Geography
Land area 238.03 sq mi
Water area 32.93 sq mi
Latitude 48.4558
Longitude -96.0374
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 53.4% 41.4% 33.6%
$50k – $100k 26.9% 34.6% 31.5%
$100k – $200k 17.6% 20.9% 26.5%
Over $200k 2.1% 3.0% 8.5%

Demographics & statistics

719
Population
3
People per sq mi
46.3
Median age
$58,438
Median household income
$37,227
Per capita income
$121,200
Median home value
$438
Median monthly rent
85.2%
Home ownership
7.9%
Poverty rate
2.4%
Unemployment
369
Housing units
14.4%
Bachelor's or higher

Age distribution

Male Female
13
Under 5
12
25
5–9
24
23
10–14
23
28
15–19
28
11
20–24
11
23
25–34
22
51
35–44
50
42
45–54
42
23
55–59
22
21
60–64
20
54
65–74
53
33
75–84
33
16
85+
16
← Male
Female →

Age summary

GroupCount%
Under 1815221.1%
18 and over56778.9%
65 and over20528.5%
Median age46.3 years

Race & ethnicity

White 97.1%
Two or more races 1.5%
Hispanic or Latino 0.7%
Black or African American 0.3%
American Indian / Alaska Native 0.3%
Asian 0.1%
GroupCount%
White70397.1%
Two or more races111.5%
Hispanic or Latino50.7%
Black or African American20.3%
American Indian / Alaska Native20.3%
Asian10.1%

Household income

Income range This ZIP County avg State avg
Under $50k 53.4% 41.4% 33.6%
$50k – $100k 26.9% 34.6% 31.5%
$100k – $200k 17.6% 20.9% 26.5%
Over $200k 2.1% 3.0% 8.5%
Under $10k 6.0%
$10k–$15k 0.9%
$15k–$25k 10.5%
$25k–$35k 6.3%
$35k–$50k 10.8%
$50k–$75k 25.9%
$75k–$100k 13.0%
$100k–$150k 17.5%
$150k–$200k 3.9%
$200k+ 5.1%
Range% of households
Under $10k6.0%
$10k–$15k0.9%
$15k–$25k10.5%
$25k–$35k6.3%
$35k–$50k10.8%
$50k–$75k25.9%
$75k–$100k13.0%
$100k–$150k17.5%
$150k–$200k3.9%
$200k+5.1%
Median income$58,438

Housing

Home values

Under $50k 14.5%
$50k–$100k 22.6%
$100k–$150k 25.8%
$150k–$200k 11.0%
$200k–$300k 16.6%
$300k–$500k 7.8%
$500k–$1M 1.8%

Housing overview

MetricValue
Median home value$121,200
Median rent / month$438
Owner occupied85.2%
Renter occupied14.8%
Vacant20.6%
Single-family detached74.2%
Large apartment buildings2.4%
Mobile homes17.9%
Median rooms5.3
Avg household size (owned)2.25

Year built

Era%
2020 or later0.2%
2010–20193.8%
2000–20095.3%
1990–19997.9%
1980–19898.1%
1970–197925.6%
1960–196912.2%
1950–195910.5%
1940–194910.0%
1939 or earlier16.3%

Bedrooms

Size% of units
No bedroom (studio)2.2%
1 bedroom11.2%
2 bedrooms25.1%
3 bedrooms44.5%
4 bedrooms12.0%
5+ bedrooms5.0%

Vehicles per household

Vehicles% of households
No vehicle2.7%
1 vehicle20.2%
2 vehicles32.8%
3 or more44.3%

Heating fuel

Fuel type%
Utility gas2.7%
Electricity21.4%
Propane / LP gas57.5%
Fuel oil6.3%
Wood9.6%

Households & families

Household typeCount%
Married-couple family15446.4%
Cohabiting couple164.8%
Male householder, no spouse9127.4%
Female householder, no spouse7121.4%
Households with children under 186619.9%
Households with seniors (65+)13540.7%
Average household size2.16

Marital status

StatusMaleFemale
Never married18.6%18.8%
Married52.1%58.2%
Separated0.0%0.0%
Widowed5.5%14.4%
Divorced23.8%8.6%

Education

Less than 9th grade 2.7%
Some HS, no diploma 5.2%
HS graduate 45.1%
Some college, no degree 21.7%
Associate's degree 10.9%
Bachelor's degree 12.9%
Graduate / professional 1.5%
Metric%
HS diploma or higher92.1%
Bachelor's or higher14.4%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool1811.0%
Kindergarten127.3%
Elementary school7243.9%
High school4125.0%
College / grad school2112.8%

Employment

Industry of employment

Construction 16.6%
Manufacturing 15.2%
Education & healthcare 13.9%
Wholesale trade 13.6%
Retail trade 11.1%
Agriculture & mining 10.2%
Transportation & utilities 5.3%
Finance & real estate 3.6%
Other services 3.0%
Public administration 3.0%
Professional & management 2.2%
Arts, food & hospitality 1.9%
Information 0.3%

Occupation

Category%
Management, business & arts32.1%
Service10.5%
Sales & office21.6%
Natural resources & construction15.8%
Production & transportation19.9%

Employment type

Type%
Private sector76.7%
Government8.0%
Self-employed15.2%
Unpaid family workers0.0%

Commute

Method%
Drive alone77.7%
Carpool7.7%
Public transit0.0%
Walk0.9%
Work from home13.4%
Other means0.3%
Avg commute (minutes)38.0

Poverty

All people 7.9%
Under 18 years 13.7%
18 and over 6.5%
Married-couple families 2.6%
Female-led households 33.3%

Income support

Source% of households
Social Security41.6%
Retirement income22.0%
Supplemental Security2.1%
Cash public assistance2.4%
Food stamps / SNAP6.3%

Health indicators

Condition%
Obesity34.5%
High blood pressure34.9%
High cholesterol33.9%
Diabetes10.7%
Heart disease7.6%
Stroke3.5%
Asthma8.8%
Arthritis27.8%
Kidney disease3.2%
Pulmonary disease6.7%
Cancer8.4%
Behavior / access%
Smoking18.6%
Binge drinking17.6%
No physical activity23.7%
Less than 7 hrs sleep27.8%
Depression21.3%
Fair or poor health13.3%
Poor mental health12.6%
Poor physical health10.3%
No health insurance10.8%
Visited doctor (checkup)71.5%
Visited dentist65.9%
Cholesterol screening91.2%
Teeth loss11.5%

Veterans & disability

VeteransCount%
Civilian veterans508.8%
Disability%
Any disability17.3%
Under 184.6%
18–64 years11.6%
65 and over36.6%

Health insurance coverage

Type%
Private insurance68.1%
Public insurance47.1%
No insurance7.0%
Uninsured under 194.2%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only69496.5%
Spanish20.3%
Other Indo-European00.0%
Asian & Pacific Islander20.3%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)71299.0%
Born in same state71299.0%
Born in different state56879.0%
Foreign born00.0%
Naturalized citizen71.0%
Not a US citizen685.7%

Ancestry

AncestryCount%
Polish40856.7%
Italian588.1%
French192.6%
Arab182.5%
AncestryCount%
Dutch30.4%
German20.3%
English20.3%

Technology access

Metric% of households
Computer access46.2%
Internet access89.8%

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

Frequently asked questions about ZIP code 56737

What city is ZIP code 56737 in?

ZIP code 56737 is primarily assigned to Middle River, Minnesota.

What county is ZIP code 56737 in?

ZIP code 56737 falls within Marshall County, Minnesota.

Does ZIP code 56737 have an older population?

29% of residents in ZIP code 56737 are 65 or older, above the national average of ~17%.

Is ZIP code 56737 mostly owner-occupied?

85% of occupied units in ZIP code 56737 are owner-occupied, well above the national average.

How educated is the population of ZIP code 56737?

14% 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 56737 have a large retiree population?

42% of households in ZIP code 56737 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 56737 in?

ZIP code 56737 observes the CST timezone.

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