Aitkin ZIP Codes — Aitkin County, MN

There is one unique ZIP code in Aitkin, Minnesota and it is 56431. Area code: 218.

ZIP codes

462.81

sq mi land

127.58

sq mi water

218

area code

Aitkin, MN ZIP code map

About Aitkin, MN

Aitkin, Minnesota, is a charming city located in the heart of Aitkin County. Known for its picturesque landscapes and rich natural resources, Aitkin offers a blend of outdoor recreation and small-town charm. The city serves as a gateway to numerous lakes and forests, making it an attractive destination for residents and visitors alike.

Location & geography

Aitkin is strategically located in central Minnesota, approximately 80 miles north of Minneapolis and just 38 miles southwest of Brainerd. The city sits amid a diverse terrain, with a land area of 462.81 square miles and a significant water area of 127.58 square miles, contributing to its natural beauty. The area is interspersed with numerous lakes, making it ideal for fishing, boating, and enjoying the outdoors.

Community & economy

The character of Aitkin reflects its deep-rooted history and community spirit, with friendly locals and engaging small businesses. The economy of Aitkin is anchored by industries such as tourism, agriculture, and timber, which thrive due to the city’s abundant natural resources. Daily life in Aitkin is characterized by a strong sense of community, with various events and activities that gather residents together throughout the year.

Transportation

Transportation in Aitkin is facilitated by several key highways, including U.S. Highway 169 and Minnesota State Highway 47, which provide easy access to neighboring cities and regions. The nearest major airport is Brainerd Lakes Regional Airport, located approximately 36 miles away, offering regional flights for travel. Public transit options are limited, but the community is well-connected for those who utilize personal vehicles.

History

Aitkin was founded in the late 19th century and quickly developed as a center for timber and agriculture due to the surrounding rich resources. The city's growth was fueled by the establishment of the railroad, which allowed for easier transportation of goods and people, solidifying its role as a hub in the region. Notable events in its history include the annual Aitkin Riverboat Days, which celebrates the city’s heritage and draws many visitors.

Did you know?

Aitkin is home to the Aitkin County Historical Society, which preserves the rich history and culture of the region. A little-known fact is that the city is surrounded by a vast number of lakes, with over 600 within a 10-mile radius, making it a popular destination for anglers and outdoor enthusiasts.

ZIP codes for Aitkin, MN (1)

ZIP code	City	County	Map
56431	Aitkin	Aitkin	View map

Demographics & statistics

8,958

Population

57.3

Median age

$59,590

Median household income

$34,326

Per capita income

$243,400

Median home value

$826

Median monthly rent

84.8%

Home ownership

11.8%

Poverty rate

4.3%

Unemployment

6,501

Housing units

20.9%

Bachelor's or higher

Age distribution

Male Female

134

Under 5

135

218

5–9

221

212

10–14

215

234

15–19

237

181

20–24

184

303

25–34

307

364

35–44

369

455

45–54

462

356

55–59

362

430

60–64

436

831

65–74

843

543

75–84

551

186

85+

189

← Male

Female →

Age summary

Group	Count	%
Under 18	1,475	16.5%
18 and over	7,483	83.5%
65 and over	3,143	35.1%
Median age	57.3 years

Race & ethnicity

White 93.3%

Two or more races 2.3%

Hispanic or Latino 2.1%

Other race 1%

American Indian / Alaska Native 0.6%

Black or African American 0.4%

Asian 0.1%

Group	Count	%
White	8,544	93.3%
Two or more races	210	2.3%
Hispanic or Latino	196	2.1%
Other race	95	1%
American Indian / Alaska Native	55	0.6%
Black or African American	40	0.4%
Asian	10	0.1%

Household income

Under $10k 5.4%

$10k–$15k 6.9%

$15k–$25k 10.1%

$25k–$35k 7.6%

$35k–$50k 12.8%

$50k–$75k 18.2%

$75k–$100k 13.5%

$100k–$150k 16.7%

$150k–$200k 5.4%

$200k+ 3.5%

Range	% of households
Under $10k	5.4%
$10k–$15k	6.9%
$15k–$25k	10.1%
$25k–$35k	7.6%
$35k–$50k	12.8%
$50k–$75k	18.2%
$75k–$100k	13.5%
$100k–$150k	16.7%
$150k–$200k	5.4%
$200k+	3.5%
Median income	$59,590

Housing

Home values

Under $50k 4.8%

$50k–$100k 6.6%

$100k–$150k 9.2%

$150k–$200k 16.8%

$200k–$300k 26.1%

$300k–$500k 28.0%

$500k–$1M 7.3%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$243,400
Median rent / month	$826
Owner occupied	84.8%
Renter occupied	15.2%
Vacant	45.7%
Single-family detached	85.1%
Large apartment buildings	3.4%
Mobile homes	8.0%
Median rooms	5.8
Avg household size (owned)	2.36

Year built

Era	%
2020 or later	0.3%
2010–2019	5.5%
2000–2009	19.8%
1990–1999	14.9%
1980–1989	12.9%
1970–1979	15.7%
1960–1969	9.0%
1950–1959	7.2%
1940–1949	3.9%
1939 or earlier	10.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.3%
1 bedroom	8.3%
2 bedrooms	29.5%
3 bedrooms	39.1%
4 bedrooms	17.0%
5+ bedrooms	3.8%

Vehicles per household

Vehicles	% of households
No vehicle	6.1%
1 vehicle	28.6%
2 vehicles	39.2%
3 or more	26.1%

Heating fuel

Fuel type	%
Utility gas	20.7%
Electricity	19.0%
Propane / LP gas	45.0%
Fuel oil	1.7%
Wood	10.9%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	1,945	50.5%
Cohabiting couple	213	5.5%
Male householder, no spouse	773	20.1%
Female householder, no spouse	917	23.8%
Households with children under 18	659	17.1%
Households with seniors (65+)	2,055	53.4%
Average household size	2.27

Marital status

Status	Male	Female
Never married	25.2%	22.1%
Married	55.3%	52.7%
Separated	0.9%	0.7%
Widowed	5.7%	13.4%
Divorced	13.0%	11.2%

Education

Less than 9th grade 1.8%

Some HS, no diploma 4.4%

HS graduate 35.8%

Some college, no degree 23.3%

Associate's degree 13.7%

Bachelor's degree 14.4%

Graduate / professional 6.5%

Metric	%
HS diploma or higher	93.7%
Bachelor's or higher	20.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	67	4.4%
Kindergarten	103	6.7%
Elementary school	669	43.8%
High school	437	28.6%
College / grad school	250	16.4%

Employment

Industry of employment

Education & healthcare 26.0%

Retail trade 11.5%

Construction 10.6%

Arts, food & hospitality 9.5%

Manufacturing 8.4%

Professional & management 7.8%

Public administration 6.1%

Other services 5.6%

Finance & real estate 4.8%

Transportation & utilities 3.8%

Agriculture & mining 2.9%

Wholesale trade 2.4%

Information 0.6%

Occupation

Category	%
Management, business & arts	34.5%
Service	18.5%
Sales & office	20.8%
Natural resources & construction	13.9%
Production & transportation	12.4%

Employment type

Type	%
Private sector	75.1%
Government	15.0%
Self-employed	9.5%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	75.8%
Carpool	9.6%
Public transit	0.1%
Walk	2.2%
Other means	1.4%
Avg commute (minutes)	22.6

Poverty

All people 11.8%

Under 18 years 14.9%

18 and over 11.2%

Married-couple families 3.4%

Female-led households 27.6%

Income support

Source	% of households
Social Security	55.4%
Retirement income	39.0%
Supplemental Security	4.4%
Cash public assistance	3.1%
Food stamps / SNAP	6.2%

Health indicators

Condition	%
High blood pressure	39.7%
High cholesterol	35.6%
Heart disease	9.3%
Stroke	4.3%
Asthma	9.0%
Arthritis	31.7%
Kidney disease	3.9%
Pulmonary disease	8.1%
Cancer	9.6%

Behavior / access	%
Binge drinking	16.6%
No physical activity	25.0%
Less than 7 hrs sleep	27.7%
Fair or poor health	15.2%
Poor mental health	12.5%
Poor physical health	11.6%
No health insurance	10.8%
Visited doctor (checkup)	72.9%
Visited dentist	63.9%
Cholesterol screening	92.0%
Teeth loss	12.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	776	10.4%

Disability	%
Any disability	19.5%
Under 18	5.8%
18–64 years	14.7%
65 and over	33.0%

Health insurance coverage

Type	%
Private insurance	65.6%
Public insurance	55.8%
Uninsured under 19	5.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	8,689	97.0%
Spanish	25	0.3%
Other Indo-European	11	0.1%
Asian & Pacific Islander	8	0.1%
Other languages	3	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,893	99.3%
Born in same state	8,846	98.7%
Born in different state	7,022	78.4%
Foreign born	47	0.5%
Naturalized citizen	65	0.7%
Not a US citizen	32	49.2%

Ancestry

Ancestry	Count	%
Polish	1,624	18.1%
Italian	1,030	11.5%
French	663	7.4%
Arab	363	4.1%
English	230	2.6%

Ancestry	Count	%
Dutch	104	1.2%
German	94	1%
Irish	15	0.2%
Norwegian	14	0.2%

Technology access

Metric	% of households
Computer access	43.0%
Internet access	90.2%

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

Frequently asked questions

What ZIP codes does Aitkin, MN have?

Aitkin, MN has one ZIP code: 56431. Each ZIP code serves a distinct delivery area within the city and surrounding region.