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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MI/IRON-MOUNTAIN

Iron Mountain ZIP code, Michigan

The ZIP code for Iron Mountain, MI is 49801, and its area code is 906.

USPS city name
1 ZIP code
Population
7,518
Area code
906

Iron Mountain in numbers

About 7,518 people live in Iron Mountain, in 3,582 households. The median household income is $59,405 a year, 18% below the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $141,600 (39% below the Michigan median), and median gross rent is $744 a month. The median age is 43.5; 22.8% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 16 minutes.

Population7,518Iron Mountain7,518
Households3,582Iron Mountain3,582
Median age43.5Iron Mountain43.5Michigan40.2US 38.9
Median household income$59,405Iron Mountain$59,405Michigan$72,875US $80,734
Median home value$141,600Iron Mountain$141,600Michigan$231,600US $332,700
Median gross rent$744Iron Mountain$744Michigan$1,129US $1,413
Bachelor's degree or higher22.8%Iron Mountain22.8%Michigan32.4%US 35.7%
Mean commute16.0 minIron Mountain16.0 minMichigan24.2 minUS 26.4 min
Population density997 / sq miIron Mountain997 / sq mi

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

ZIP codes addressed as Iron Mountain

ZIP codes with the USPS city name Iron Mountain
ZIP City Type Population Median income Median home
49801 Iron Mountain , MI Standard 11,860 $67,337 $168,700

Map of Iron Mountain ZIP codes

49801

The ZIP codes of Iron Mountain, MI, 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.

Towns near Iron Mountain

The nearest larger towns are Escanaba (12,354 people, 47 mi), Menominee (8,326 people, 53 mi) and Marinette, WI (11,115 people, 55 mi).

Towns near Iron Mountain
TownPopulationDistance
Kingsford 5,124 2.4 mi
Norway 2,833 7.3 mi

More nearby: every ZIP code in Dickinson County · Michigan ZIP codes

Cite this page

zipcodes.pro. “Iron Mountain, MI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mi/iron-mountain

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