56031 ZIP Code — Fairmont, MN
Martin County, Minnesota
ZIP code 56031 is located in Fairmont, Minnesota, within Martin County. It covers approximately 156.32 square miles and serves a population of 11,861 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 507.
About ZIP code 56031
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 $163,100. Owner-occupancy sits near the national average at 69%.
Median household income is $58,647. 38% 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 16 minutes is near the national average.
Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.
11,861
population
156.32
sq mi land
Standard
ZIP type
Central (CT)
timezone
56031 ZIP code map
Cities in ZIP code 56031
Below are the cities the US Postal Service accepts for ZIP code 56031. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Fairmont | Preferred |
Nearby ZIP codes
56039 Granada (6.9 mi)
56181 Welcome (7.6 mi)
56121 Ceylon (9.3 mi)
56088 Truman (12.8 mi)
50531 Dolliver (14.8 mi)
56171 Sherburn (14.9 mi)
50514 Armstrong (15 mi)
56098 Winnebago (16.1 mi)
56127 Dunnell (16.5 mi)
56176 Trimont (16.5 mi)
56027 Elmore (17.2 mi)
50590 Swea City (18 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 11,861 |
| Population density | 76 / sq mi |
| State FIPS | 27 |
| County FIPS | 091 |
| Geography | |
|---|---|
| Land area | 156.32 sq mi |
| Water area | 7.67 sq mi |
| Latitude | 43.6305 |
| Longitude | -94.4607 |
| Timezone | Central (CT) |
| Area code | 507 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 48.6% | 46.2% | 33.6% |
| $50k – $100k | 30.8% | 33.2% | 31.5% |
| $100k – $200k | 15.8% | 16.4% | 26.5% |
| Over $200k | 4.8% | 4.2% | 8.5% |
Demographics & statistics
11,861
Population
76
People per sq mi
46.2
Median age
$58,647
Median household income
$36,110
Per capita income
$163,100
Median home value
$749
Median monthly rent
68.5%
Home ownership
13.2%
Poverty rate
5.1%
Unemployment
3,983
Housing units
25.2%
Bachelor's or higher
Age distribution
Male
Female
317
Under 5
311
420
5–9
412
327
10–14
321
339
15–19
333
197
20–24
193
635
25–34
625
662
35–44
650
701
45–54
690
499
55–59
490
527
60–64
519
667
65–74
656
435
75–84
427
256
85+
252
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,545 | 21.5% |
| 18 and over | 9,316 | 78.5% |
| 65 and over | 2,693 | 22.7% |
| Median age | 46.2 years | |
Race & ethnicity
White
90.6%
Hispanic or Latino
3.4%
Two or more races
2.6%
Other race
2.1%
Black or African American
0.7%
Asian
0.6%
| Group | Count | % |
|---|---|---|
| White | 11,120 | 90.6% |
| Hispanic or Latino | 412 | 3.4% |
| Two or more races | 315 | 2.6% |
| Other race | 263 | 2.1% |
| Black or African American | 89 | 0.7% |
| Asian | 71 | 0.6% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 48.6% | 46.2% | 33.6% |
| $50k – $100k | 30.8% | 33.2% | 31.5% |
| $100k – $200k | 15.8% | 16.4% | 26.5% |
| Over $200k | 4.8% | 4.2% | 8.5% |
Under $10k
4.5%
$10k–$15k
3.6%
$15k–$25k
10.9%
$25k–$35k
9.7%
$35k–$50k
12.5%
$50k–$75k
17.2%
$75k–$100k
13.9%
$100k–$150k
17.8%
$150k–$200k
4.9%
$200k+
4.9%
| Range | % of households |
|---|---|
| Under $10k | 4.5% |
| $10k–$15k | 3.6% |
| $15k–$25k | 10.9% |
| $25k–$35k | 9.7% |
| $35k–$50k | 12.5% |
| $50k–$75k | 17.2% |
| $75k–$100k | 13.9% |
| $100k–$150k | 17.8% |
| $150k–$200k | 4.9% |
| $200k+ | 4.9% |
| Median income | $58,647 |
Housing
Home values
Under $50k
8.9%
$50k–$100k
18.8%
$100k–$150k
15.6%
$150k–$200k
24.2%
$200k–$300k
15.8%
$300k–$500k
12.3%
$500k–$1M
4.3%
$1M+
0.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $163,100 |
| Median rent / month | $749 |
| Owner occupied | 68.5% |
| Renter occupied | 31.5% |
| Vacant | 5.5% |
| Single-family detached | 71.8% |
| Large apartment buildings | 11.5% |
| Mobile homes | 2.2% |
| Median rooms | 5.9 |
| Avg household size (owned) | 2.37 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 1.9% |
| 2000–2009 | 4.5% |
| 1990–1999 | 6.8% |
| 1980–1989 | 7.8% |
| 1970–1979 | 20.3% |
| 1960–1969 | 11.4% |
| 1950–1959 | 16.8% |
| 1940–1949 | 8.4% |
| 1939 or earlier | 22.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 3.1% |
| 1 bedroom | 12.0% |
| 2 bedrooms | 30.3% |
| 3 bedrooms | 32.4% |
| 4 bedrooms | 16.8% |
| 5+ bedrooms | 5.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 7.9% |
| 1 vehicle | 36.2% |
| 2 vehicles | 34.4% |
| 3 or more | 21.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 68.4% |
| Electricity | 18.4% |
| Propane / LP gas | 11.2% |
| Fuel oil | 0.3% |
| Wood | 0.2% |
| No fuel used | 0.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 2,619 | 48.9% |
| Cohabiting couple | 574 | 10.7% |
| Male householder, no spouse | 1,026 | 19.2% |
| Female householder, no spouse | 1,138 | 21.2% |
| Households with children under 18 | 1,283 | 23.9% |
| Households with seniors (65+) | 1,887 | 35.2% |
| Average household size | 2.17 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 27.8% | 16.0% |
| Married | 55.5% | 55.6% |
| Separated | 0.6% | 0.5% |
| Widowed | 5.6% | 12.4% |
| Divorced | 10.5% | 15.4% |
Education
Less than 9th grade
1.8%
Some HS, no diploma
4.6%
HS graduate
33.4%
Some college, no degree
21.0%
Associate's degree
14.0%
Bachelor's degree
15.7%
Graduate / professional
9.6%
| Metric | % |
|---|---|
| HS diploma or higher | 93.6% |
| Bachelor's or higher | 25.2% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 146 | 6.1% |
| Kindergarten | 150 | 6.3% |
| Elementary school | 1,201 | 50.5% |
| High school | 687 | 28.9% |
| College / grad school | 193 | 8.1% |
Employment
Industry of employment
Education & healthcare
27.3%
Manufacturing
21.0%
Retail trade
12.3%
Arts, food & hospitality
9.0%
Agriculture & mining
8.1%
Finance & real estate
5.6%
Construction
3.5%
Transportation & utilities
3.4%
Professional & management
2.8%
Other services
2.8%
Public administration
2.7%
Wholesale trade
1.2%
Information
0.4%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 33.6% |
| Service | 17.9% |
| Sales & office | 21.5% |
| Natural resources & construction | 9.5% |
| Production & transportation | 17.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 82.6% |
| Government | 11.0% |
| Self-employed | 6.2% |
| Unpaid family workers | 0.2% |
Commute
| Method | % |
|---|---|
| Drive alone | 83.5% |
| Carpool | 5.2% |
| Public transit | 0.2% |
| Walk | 2.3% |
| Work from home | 7.4% |
| Other means | 1.5% |
| Avg commute (minutes) | 15.6 |
Poverty
All people
13.2%
Under 18 years
16.6%
18 and over
12.3%
Married-couple families
6.7%
Female-led households
40.3%
Income support
| Source | % of households |
|---|---|
| Social Security | 38.0% |
| Retirement income | 25.2% |
| Supplemental Security | 7.5% |
| Cash public assistance | 3.5% |
| Food stamps / SNAP | 11.1% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.7% |
| High blood pressure | 35.0% |
| High cholesterol | 33.6% |
| Diabetes | 11.4% |
| Heart disease | 8.1% |
| Stroke | 3.9% |
| Asthma | 9.2% |
| Arthritis | 27.3% |
| Kidney disease | 3.5% |
| Pulmonary disease | 7.3% |
| Cancer | 8.4% |
| Behavior / access | % |
|---|---|
| Smoking | 19.1% |
| Binge drinking | 16.9% |
| No physical activity | 26.1% |
| Less than 7 hrs sleep | 25.8% |
| Depression | 21.8% |
| Fair or poor health | 15.1% |
| Poor mental health | 13.3% |
| Poor physical health | 11.1% |
| No health insurance | 12.2% |
| Visited doctor (checkup) | 70.3% |
| Visited dentist | 59.8% |
| Cholesterol screening | 89.8% |
| Teeth loss | 14.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 715 | 7.7% |
| Disability | % |
|---|---|
| Any disability | 16.0% |
| Under 18 | 6.0% |
| 18–64 years | 12.8% |
| 65 and over | 33.9% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 65.8% |
| Public insurance | 47.7% |
| No insurance | 5.6% |
| Uninsured under 19 | 8.2% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 11,233 | 94.7% |
| Spanish | 276 | 2.5% |
| Other Indo-European | 243 | 2.2% |
| Asian & Pacific Islander | 19 | 0.2% |
| Other languages | 3 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 11,532 | 97.2% |
| Born in same state | 11,386 | 96.0% |
| Born in different state | 8,900 | 75.0% |
| Foreign born | 146 | 1.2% |
| Naturalized citizen | 329 | 2.8% |
| Not a US citizen | 215 | 65.3% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 1,349 | 11.4% |
| Italian | 769 | 6.5% |
| French | 595 | 5% |
| Arab | 336 | 2.8% |
| Ancestry | Count | % |
|---|---|---|
| English | 234 | 2% |
| Dutch | 110 | 0.9% |
| German | 64 | 0.5% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 45.2% |
| Internet access | 93.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 56031
What city is ZIP code 56031 in?
ZIP code 56031 is primarily assigned to Fairmont, Minnesota.
What county is ZIP code 56031 in?
ZIP code 56031 falls within Martin County, Minnesota.
Does ZIP code 56031 have a large retiree population?
38% of households in ZIP code 56031 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 56031?
The median home value in ZIP code 56031 is $163,100.
What is the population of ZIP code 56031?
ZIP code 56031 has an estimated population of 11,861 residents, with a density of 76 people per square mile.
What is the median household income in ZIP code 56031?
The median household income in ZIP code 56031 is $58,647, below the national median of ~$75,000.
What timezone is ZIP code 56031 in?
ZIP code 56031 observes the CST timezone.