Middle River ZIP Codes — Marshall County, MN

There is one unique ZIP code in Middle River, Minnesota and it is 56737. Area code: 218.

ZIP codes

238.03

sq mi land

32.93

sq mi water

218

area code

Middle River, MN ZIP code map

About Middle River, MN

Middle River, Minnesota, is a charming small city located in the northern part of the state. It is part of Marshall County and offers a warm community atmosphere enriched by its natural surroundings. With a population that enjoys the simplicity of rural life, Middle River presents a unique blend of agricultural heritage and modern living.

Location & geography

Middle River is situated in the northwestern region of Minnesota, making it a scenic spot surrounded by the natural beauty of the area. It is approximately 15 miles northwest of the city of Thief River Falls and about 16 miles east of the city of Badger. The city covers a total land area of 238.03 square miles, accompanied by a water area of 32.93 square miles, featuring lush landscapes and waterways.

Community & economy

The community of Middle River is characterized by its friendliness and neighborly spirit, making it an inviting place for residents and visitors alike. Agriculture plays a significant role in the local economy, along with various small businesses that cater to the community's needs. Daily life is often bustling with local events, outdoor activities, and the strong support of community organizations.

Transportation

Middle River is accessible via Highway 1, which connects it to other towns and cities in the area, facilitating easy travel throughout the region. The nearest named airport is the Thief River Falls Regional Airport, located approximately 20 miles south, providing access to larger travel hubs. Public transit options are limited, relying mainly on personal vehicles for transportation.

History

Middle River was founded in the late 19th century, emerging as a small agricultural hub within Marshall County. Over the years, it has witnessed the growth of key industries such as farming and retail, shaping its economy and community identity. Notable events include annual county fairs and seasonal festivals that celebrate local culture and traditions.

Did you know?

One surprising fact about Middle River is that it hosts the annual 'Middle River Riverfest,' which draws visitors from all over the region for various family-friendly activities. Additionally, the city is known for its stunning natural beauty, particularly its access to waterways ideal for fishing and recreation.

ZIP codes for Middle River, MN (1)

ZIP code	City	County	Map
56737	Middle River	Marshall	View map

Demographics & statistics

719

Population

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

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	152	21.1%
18 and over	567	78.9%
65 and over	205	28.5%
Median age	46.3 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%

Group	Count	%
White	703	97.1%
Two or more races	11	1.5%
Hispanic or Latino	5	0.7%
Black or African American	2	0.3%
American Indian / Alaska Native	2	0.3%
Asian	1	0.1%

Household income

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 $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%
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

Metric	Value
Median home value	$121,200
Median rent / month	$438
Owner occupied	85.2%
Renter occupied	14.8%
Vacant	20.6%
Single-family detached	74.2%
Large apartment buildings	2.4%
Mobile homes	17.9%
Median rooms	5.3
Avg household size (owned)	2.25

Year built

Era	%
2020 or later	0.2%
2010–2019	3.8%
2000–2009	5.3%
1990–1999	7.9%
1980–1989	8.1%
1970–1979	25.6%
1960–1969	12.2%
1950–1959	10.5%
1940–1949	10.0%
1939 or earlier	16.3%

Bedrooms

Size	% of units
No bedroom (studio)	2.2%
1 bedroom	11.2%
2 bedrooms	25.1%
3 bedrooms	44.5%
4 bedrooms	12.0%
5+ bedrooms	5.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.7%
1 vehicle	20.2%
2 vehicles	32.8%
3 or more	44.3%

Heating fuel

Fuel type	%
Utility gas	2.7%
Electricity	21.4%
Propane / LP gas	57.5%
Fuel oil	6.3%
Wood	9.6%

Households & families

Household type	Count	%
Married-couple family	154	46.4%
Cohabiting couple	16	4.8%
Male householder, no spouse	91	27.4%
Female householder, no spouse	71	21.4%
Households with children under 18	66	19.9%
Households with seniors (65+)	135	40.7%
Average household size	2.16

Marital status

Status	Male	Female
Never married	18.6%	18.8%
Married	52.1%	58.2%
Separated	0.0%	0.0%
Widowed	5.5%	14.4%
Divorced	23.8%	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 higher	92.1%
Bachelor's or higher	14.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	18	11.0%
Kindergarten	12	7.3%
Elementary school	72	43.9%
High school	41	25.0%
College / grad school	21	12.8%

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 & arts	32.1%
Service	10.5%
Sales & office	21.6%
Natural resources & construction	15.8%
Production & transportation	19.9%

Employment type

Type	%
Private sector	76.7%
Government	8.0%
Self-employed	15.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.7%
Carpool	7.7%
Public transit	0.0%
Walk	0.9%
Other means	0.3%
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 Security	41.6%
Retirement income	22.0%
Supplemental Security	2.1%
Cash public assistance	2.4%
Food stamps / SNAP	6.3%

Health indicators

Condition	%
High blood pressure	34.9%
High cholesterol	33.9%
Heart disease	7.6%
Stroke	3.5%
Asthma	8.8%
Arthritis	27.8%
Kidney disease	3.2%
Pulmonary disease	6.7%
Cancer	8.4%

Behavior / access	%
Binge drinking	17.6%
No physical activity	23.7%
Less than 7 hrs sleep	27.8%
Fair or poor health	13.3%
Poor mental health	12.6%
Poor physical health	10.3%
No health insurance	10.8%
Visited doctor (checkup)	71.5%
Visited dentist	65.9%
Cholesterol screening	91.2%
Teeth loss	11.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	50	8.8%

Disability	%
Any disability	17.3%
Under 18	4.6%
18–64 years	11.6%
65 and over	36.6%

Health insurance coverage

Type	%
Private insurance	68.1%
Public insurance	47.1%
Uninsured under 19	4.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	694	96.5%
Spanish	2	0.3%
Other Indo-European	0	0.0%
Asian & Pacific Islander	2	0.3%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	712	99.0%
Born in same state	712	99.0%
Born in different state	568	79.0%
Foreign born	0	0.0%
Naturalized citizen	7	1.0%
Not a US citizen	6	85.7%

Ancestry

Ancestry	Count	%
Polish	408	56.7%
Italian	58	8.1%
French	19	2.6%
Arab	18	2.5%

Ancestry	Count	%
Dutch	3	0.4%
German	2	0.3%
English	2	0.3%

Technology access

Metric	% of households
Computer access	46.2%
Internet access	89.8%

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

Frequently asked questions

What ZIP codes does Middle River, MN have?

Middle River, MN has one ZIP code: 56737. Each ZIP code serves a distinct delivery area within the city and surrounding region.