Postal Codes

56431 ZIP Code

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ZIP code 56431 covers Aitkin, Minnesota, with a population of about 9,142 and a median household income of $64,846.

Population
9,14220 per square mile
Median age
57.118.4 points above the US average
Median household income
$64,84626% below the Minnesota median
Poverty rate
11.3%1.1 points below the US average
Typical home value
$327,928up 33.4% in five years
Median rent
$88329% below the Minnesota median
Degree or higher
21.1%13.9 points below the US average
Homeownership
85.4%20.4 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
266

Where 56431 is

Aitkin, Minnesota — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population9,142
Median age57.1
Family households60.1%
Born outside the US0.6%
Speaks a language other than English at home1.1%
White (non-Hispanic)94.6%
Black (non-Hispanic)0.7%
Asian (non-Hispanic)0.1%
Hispanic or Latino1.5%
Veterans9.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$64,846
Income per person$37,010
Poverty rate11.3%
Households on SNAP or cash assistance9%

Household income distribution

Under $10k4.2%
$10–15k5.6%
$15–20k4.8%
$20–25k5.6%
$25–30k3.5%
$30–35k3.6%
$35–40k3.4%
$40–45k4.5%
$45–50k3.6%
$50–60k8.0%
$60–75k10.7%
$75–100k14.3%
$100–125k9.9%
$125–150k7.5%
$150–200k6.6%
$200k or more4.3%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed4,430
Mean adjusted gross income$70,376
Returns declaring $200,000 or more4.3%
Returns, under $25k29.3%
Returns, $25k–$50k22.3%
Returns, $50k–$75k16.3%
Returns, $75k–$100k10.8%
Returns, $100k–$200k16.9%
Returns, $200k or more4.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$264,800
Median gross rent$883
Rent as a share of household income29.1%
Owner-occupied85.4%
Vacant homes44.8%
Median year built1983

What the homes are

Detached house85.3%
Attached house0.4%
2 to 4 units1.7%
5 to 19 units1.8%
20 or more units3.7%
Mobile home7%
Boat, RV or van0.2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$327,928as of 2026-07
Typical home value, 1 yearup 5.9%
Typical home value, 5 yearsup 33.4%
Typical home value, 10 yearsup 92.9%
Typical home value since 2000
200820172026$327,928$131,623

$133,147 in 2008 to $327,928 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.8%
Bachelor's degree or higher21.1%
High school diploma or higher94.5%
Works from home12.6%
Drives to work alone74.6%
Takes public transport0%
Commutes 45 minutes or more11.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity33.3% same as the national average of 33.4%
Diagnosed diabetes15% 3 pts above the national average of 12%
Currently smokes15.9% 2.7 pts above the national average of 13.2%
High blood pressure41.8% 7.7 pts above the national average of 34.1%
Fair or poor general health20.1% same as the national average of 20.3%
No health insurance (18–64)7.1% 4.2 pts below the national average of 11.3%
Depression23.1% 1.2 pts above the national average of 21.9%
No leisure-time physical activity28.3% 2.9 pts above the national average of 25.4%
Arthritis33.3% 8.2 pts above the national average of 25.1%
Binge drinking15.4% 0.6 pts below the national average of 16%
Taking blood pressure medication83.5% 8.8 pts above the national average of 74.7%
Cancer (non-skin)12.9% 5.2 pts above the national average of 7.7%
Current asthma10.1% same as the national average of 10.4%
Coronary heart disease10.1% 3.9 pts above the national average of 6.2%
Routine check-up in past year80% 3.3 pts above the national average of 76.7%
Cholesterol screening88.7% 2.8 pts above the national average of 85.9%
Cognitive disability13% 1.8 pts below the national average of 14.8%
Colorectal screening71.5% 7.2 pts above the national average of 64.3%
COPD9% 2.4 pts above the national average of 6.6%
Visited a dentist66.4% 5.1 pts above the national average of 61.3%
Any disability34.5% 3.8 pts above the national average of 30.7%
Lacks emotional support20% 4.8 pts below the national average of 24.8%
Food insecurity11.4% 5.7 pts below the national average of 17.1%
Received food stamps8.8% 5.5 pts below the national average of 14.3%
Hearing disability11.3% 4.6 pts above the national average of 6.7%
High cholesterol39.5% 3.3 pts above the national average of 36.2%
Housing insecurity7.9% 5.9 pts below the national average of 13.8%
Independent living disability8.7% same as the national average of 8.4%
Lacks transport6.7% 2.5 pts below the national average of 9.2%
Loneliness26.9% 7.5 pts below the national average of 34.4%
Mammography use77.2% 1.3 pts above the national average of 75.9%
Poor mental health (14+ days)13.9% 2.9 pts below the national average of 16.8%
Mobility disability17.7% 3.7 pts above the national average of 14%
Poor physical health (14+ days)14.7% 1.2 pts above the national average of 13.5%
Self-care disability4.5% 0.5 pts above the national average of 4%
Utility shut-off threat5.4% 3.4 pts below the national average of 8.8%
Sleeps under 7 hours30.2% 6.2 pts below the national average of 36.4%
Stroke5% 1.6 pts above the national average of 3.4%
All natural teeth lost13.9% 0.9 pts above the national average of 13%
Vision disability5.4% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments266
People employed2,439
Annual payroll$120,815,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 69.7% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 11 census tracts this ZIP code covers
Expected annual loss63.6 out of 100
Community resilience96.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Cold wave95Very High at its worst in this ZIP code
Landslide90.3Relatively Low at its worst in this ZIP code
Drought85.1Relatively Moderate at its worst in this ZIP code
River flooding83.2Very High at its worst in this ZIP code
Wildfire82.9Relatively Moderate at its worst in this ZIP code
Lightning77.1Relatively High at its worst in this ZIP code
Strong wind74Relatively High at its worst in this ZIP code
Hail73Relatively Moderate at its worst in this ZIP code
Winter weather48.8Relatively Moderate at its worst in this ZIP code
Ice storm46.7Relatively Low at its worst in this ZIP code
Tornado43.3Relatively Moderate at its worst in this ZIP code
Heat wave41.9Relatively Moderate at its worst in this ZIP code
Earthquake1.7Very Low at its worst in this ZIP code
Compared with Minnesota and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPMinnesotaUnited States
Median household income$64,846$87,556$78,538
Income per person$37,010$46,957$43,289
Poverty rate11.3%9.2%12.4%
Median home value$264,800$305,500$303,400
Median gross rent$883$1,235$1,348
Homeownership85.4%72.4%65%
Bachelor's degree or higher21.1%38.8%35%
Unemployment rate3.8%3.9%5.2%
Works from home12.6%15.8%13.5%
Born outside the US0.6%8.6%13.9%
Median age57.138.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationAITKIN 2E, MN US5.4 km away
Rain in a year32 in

Average high and low by month

January18.8°F / 0.1°F1.09 in rain
February24.6°F / 3.6°F0.98 in rain
March36.8°F / 15.4°F1.69 in rain
April51.5°F / 29.3°F2.82 in rain
May65.3°F / 40°F3.84 in rain
June74.7°F / 51.1°F4.44 in rain
July79.1°F / 56.1°F4.74 in rain
August76.9°F / 53.6°F3.29 in rain
September68.6°F / 45.6°F3.1 in rain
October54.7°F / 33.8°F2.93 in rain
November37.7°F / 21.9°F1.73 in rain
December24.5°F / 9.6°F1.25 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket54% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket12% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Aitkin Public School District92.7% of this ZIP code's land area
McGregor Public School District4.5% of this ZIP code's land area
Crosby-Ironton Public School District2.5% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability36more vulnerable than 36% of US census tracts
Socioeconomic status44more vulnerable than 44% of US census tracts
Household characteristics37more vulnerable than 37% of US census tracts
Racial and ethnic minority status8more vulnerable than 8% of US census tracts
Housing type and transport42more vulnerable than 42% of US census tracts
Walkability4.5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

56444 Deerwood, MN18.8 km away
56469 Palisade, MN24.1 km away
56455 Ironton, MN25.5 km away
56441 Crosby, MN26.4 km away
55760 Mcgregor, MN29.5 km away
56450 Garrison, MN31.2 km away
56342 Isle, MN36.9 km away
56350 Mc Grath, MN37.7 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Aitkin County84.7% of this ZIP code's land area
Crow Wing County15.3% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area462.81 sq mi
Water area127.58 sq mi
Population density20 people per sq mi
Latitude, longitude46.4799, -93.6454

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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