Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/MN/COUNTY/AITKIN

Aitkin County, MN ZIP codes

There are 9 ZIP codes in Aitkin County, MN, in 9 towns, from 55748 to 56469. The largest are 56431 (Aitkin), 56342 (Isle) and 55760 (Mcgregor).

The county seat is Aitkin.

ZIP codes
9
Towns
9
County seat
Aitkin
County FIPS
27001
Population
16,056
Median household income
$60,833
Land area
1,821 sq mi

Aitkin County ZIP codes by town

Aitkin (county seat)
56431

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Aitkin County ZIP codes

557485575255760557855578756342563505643156469

The ZIP codes of Aitkin County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Aitkin County in numbers

About 16,056 people live in Aitkin County, in 7,222 households, the 53rd most populous of Minnesota's 87 counties. The median household income is $60,833 a year, 32% below the Minnesota median of $89,062 (US: $80,734). The median owner-occupied home is valued at $255,800 (22% below the Minnesota median), and median gross rent is $869 a month. The median age is 56.9; 20.3% of adults 25 and over hold a bachelor's degree or higher (39.4% across Minnesota); the average commute takes 28 minutes.

Population16,056Aitkin16,056
Households7,222Aitkin7,222
Median age56.9Aitkin56.9Minnesota38.8US 38.9
Median household income$60,833Aitkin$60,833Minnesota$89,062US $80,734
Median home value$255,800Aitkin$255,800Minnesota$329,300US $332,700
Median gross rent$869Aitkin$869Minnesota$1,280US $1,413
Bachelor's degree or higher20.3%Aitkin20.3%Minnesota39.4%US 35.7%
Mean commute27.7 minAitkin27.7 minMinnesota22.7 minUS 26.4 min
Population density9 / sq miAitkin9 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Aitkin County

Largest towns in Aitkin County
TownZIP codesPopulation
Aitkin 1 2,323
Isle 1 695
Hill City 1 503
Mc Grath 1 471
Jacobson 1 446
Mcgregor 1 367
Swatara 1 271
Palisade 1 148
Tamarack 1 43

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Aitkin County.

Not sure you are in Aitkin County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Aitkin County, with figures

ZIP codes in Aitkin County
ZIP City Type Population Median income Median home
55748 Hill City , MN Standard 1,374 $53,810 $201,300
55752 Jacobson , MN Standard 446 $73,214 $201,500
55760 Mcgregor , MN Standard 2,894 $59,474 $274,600
55785 Swatara , MN Standard 271 $56,477 $181,500
55787 Tamarack , MN Standard 621 $66,111 $245,600
56342 Isle , MN Standard 2,788 $63,295 $246,500
56350 Mc Grath , MN Standard 471 $41,667 $169,400
56431 Aitkin , MN Standard 9,312 $67,828 $295,400
56469 Palisade , MN Standard 967 $66,042 $223,100

Cite this page

zipcodes.pro. “Aitkin County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mn/county/aitkin

Underlying data is public domain or openly licensed — sources, vintages and licences.