ZIP Codes of Marquette County, MI

Population & People
Population & People
Total Population
67,048
Household Income
Household Income
Median Income
$66,745
Housing
Housing
Total Housing Units
33,611
Business & Economy
Business & Economy
Total Businesses
1,657
Employment
Employment
Employment Rate
56.70%
Education
Education
Bachelor's Degree+
36.97%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 13 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:13 ZIP Codes (8 Standard, 5 PO Box, 0 Unique) [See All]
Area Code:906
Timezone:Eastern (GMT -05:00)
Local Time:2:12:33 PM
Population:67,048 [See All]
FIPS:26103
CBSA:Marquette, MI
Land Area:1,944 sq mi
Water Area:138 sq mi
Coordinates:46.4350, -87.6513
Quick Link:
https://www.zip-codes.com/county/mi-marquette.asp
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Michigan's largest county by area
Spans 1,944 sq mi — the largest of 83 counties.

Standout ZIPs in this County


Most Populous
Marquette · 33,876 people
50.5% of county total
Highest Income
Negaunee · $85,019 median
1.3× county average
Largest Land Area
Ishpeming · 367.1 sq mi
Spans the most ground
Fastest Growth
Skandia · 3.1% (10-yr)
1,889 → 1,947 residents
Most Educated
Marquette · 45.7% bachelor's+
9,954 of 21,795 adults 25+

Things worth knowing about Marquette County


67,048 residents live across 13 ZIPs covering 1,944 sq mi, served by 13 distinct USPS-recognized cities.

Population moved from 67,678 to 67,048 from 2014 to 2024 — a -0.9% change. 7 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 49866 (Negaunee, $85,019 median) and poorest ZIP 49879 (Republic, $49,471) are 25.4 miles apart — a 1.7× income gap across local geography.

Median home values vary 3.2× across this county — from $81,900 in 49871 (Palmer) to $263,300 in 49855 (Marquette).

Density varies 83× across the county — from 2 people/sq mi in 49861 (Michigamme) to 163 in 49855 (Marquette).

Educational attainment ranges from 18.7% bachelor's+ in 49814 (Champion) to 45.7% in 49855 (Marquette) — the breadth of educational profiles across the area.

Within Michigan, this is the #29 most populous of 83 counties and ranks #42 for median household income .

Weighted by population, the typical household earns about $66,290 across the county — reflecting what a typical resident sees, not a simple ZIP average.

37.0% of adults age 25+ hold a bachelor's degree or higher (16,547 of 44,761 reporting).

8 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Marquette County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
1,944
square miles
Avg density
34.5
people per sq mi
Population
67,048
across 13 ZIPs
Ishpeming
367.1 sq mi
12,117 residents
Michigamme
266.3 sq mi
523 residents
Gwinn
243.5 sq mi
7,412 residents

All ZIP Codes in Marquette County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
49855MarquetteStandard33,876$62,083208.30.1%
49849IshpemingStandard12,117$67,518367.1-3.8%
49866NegauneeStandard8,207$85,019164.92.7%
49841GwinnStandard7,412$60,568243.50.6%
49885SkandiaStandard1,947$81,172150.63.1%
49879RepublicStandard1,057$49,471137.76.7%
49814ChampionStandard1,021$77,356217.3-29.3%
49861MichigammeStandard523$61,875266.3-4.2%
49871PalmerPO Box392$63,12523.3-32.4%
49808Big BayPO Box295$52,438133.121.4%
49833Little LakePO Box201$73,57119.220.4%
49819ArnoldPO Box13.0
49865National MinePO Box0.0

Adjacent & Nearby Counties