Iron Mountain, Michigan demographics

Iron Mountain, MI demographics: median age 43.5; 22.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Iron Mountain city, Michigan · Incorporated city · GEOID 2640960. The survey estimates a population of 7,518 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Iron Mountain is 43.5 years, with a 90% margin of error of 2.6 years. There are 3,582 households (±176). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	43.5 ±2.6	40.2 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 7,518
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Under 18	1,481 ±238	19.7% ±3.2 pp	21.2%	22.0%
18–34	1,515 ±276	20.2% ±3.7 pp	22.4%	22.8%
35–64	3,093 ±347	41.1% ±4.6 pp	37.8%	38.0%
65 and older	1,429 ±261	19.0% ±3.5 pp	18.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 7,518
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Male	3,883 ±190	51.6% ±2.5 pp	49.6%	49.5%
Female	3,635 ±187	48.4% ±2.5 pp	50.4%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 7,518
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
White alone	6,799 ±155	90.4% ±2.0 pp	73.7%	61.0%
Black or African American alone	52 ±29 · low precision	0.7% ±0.4 pp · low precision	13.3%	12.2%
American Indian and Alaska Native alone	101 ±52 · low precision	1.3% ±0.7 pp · low precision	0.5%	0.9%
Asian alone	31 ±39 · low precision	0.4% ±0.5 pp · low precision	3.4%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±16 · low precision	0.0% ±0.2 pp · low precision	0.0%	0.2%
Some other race alone	72 ±55 · low precision	1.0% ±0.7 pp · low precision	1.9%	7.1%
Two or more races	463 ±179	6.2% ±2.4 pp	7.1%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 7,518
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Not Hispanic or Latino	7,200 ±102	95.8% ±1.3 pp	94.1%	80.7%
Hispanic or Latino	318 ±98	4.2% ±1.3 pp	5.9%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 3,582
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Married-couple family	1,475 ±212	41.2% ±5.6 pp	46.1%	46.9%
Other family: male householder, no spouse present	267 ±124	7.5% ±3.4 pp	4.9%	5.1%
Other family: female householder, no spouse present	404 ±172	11.3% ±4.8 pp	11.5%	12.2%
Nonfamily: householder living alone	1,187 ±217	33.1% ±5.8 pp	30.7%	28.7%
Nonfamily: householder not living alone	249 ±105	7.0% ±2.9 pp	6.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 3,582
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Households with people under 18	969 ±164	27.1% ±4.4 pp	27.1%	29.5%
Households without people under 18	2,613 ±239	72.9% ±5.6 pp	72.9%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 3,582
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
One-person nonfamily households	1,187 ±217	33.1% ±5.8 pp	30.7%	28.7%
Two-person households	1,345 ±253	37.5% ±6.8 pp	35.1%	33.8%
Three-person households	598 ±171	16.7% ±4.7 pp	14.3%	15.3%
Four-person households	322 ±117	9.0% ±3.2 pp	11.7%	12.6%
Five-person households	101 ±55 · low precision	2.8% ±1.5 pp · low precision	5.2%	5.9%
Six-person households	23 ±33 · low precision	0.6% ±0.9 pp · low precision	1.9%	2.2%
Seven or more people	6 ±20 · low precision	0.2% ±0.6 pp · low precision	1.1%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 7,518
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Native	7,373 ±89	98.1% ±1.1 pp	92.8%	85.9%
Foreign born	145 ±86 · low precision	1.9% ±1.1 pp · low precision	7.2%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 7,263
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
English only	7,009 ±158	96.5% ±1.7 pp	89.6%	77.7%
Spanish	174 ±105 · low precision	2.4% ±1.4 pp · low precision	3.1%	13.6%
French, Haitian, or Cajun	12 ±21 · low precision	0.2% ±0.3 pp · low precision	0.2%	0.7%
German or other West Germanic	12 ±18 · low precision	0.2% ±0.2 pp · low precision	0.5%	0.5%
Russian, Polish, or other Slavic	0 ±16 · low precision	0.0% ±0.2 pp · low precision	0.6%	0.7%
Other Indo-European	0 ±16 · low precision	0.0% ±0.2 pp · low precision	1.8%	2.0%
Korean	0 ±16 · low precision	0.0% ±0.2 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	14 ±25 · low precision	0.2% ±0.3 pp · low precision	0.5%	1.1%
Vietnamese	0 ±16 · low precision	0.0% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	22 ±30 · low precision	0.3% ±0.4 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	4 ±8 · low precision	0.1% ±0.1 pp · low precision	0.8%	1.1%
Arabic	0 ±16 · low precision	0.0% ±0.2 pp · low precision	1.8%	0.5%
Other and unspecified	16 ±24 · low precision	0.2% ±0.3 pp · low precision	0.6%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 5,439
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Less than high school graduate	352 ±160	6.5% ±2.9 pp	7.9%	10.4%
High school graduate or equivalency	1,907 ±272	35.1% ±4.8 pp	28.0%	26.0%
Some college, no degree	1,310 ±233	24.1% ±4.2 pp	21.9%	19.1%
Associate’s degree	628 ±163	11.5% ±3.0 pp	9.8%	8.8%
Bachelor’s degree	826 ±189	15.2% ±3.4 pp	19.7%	21.6%
Graduate or professional degree	416 ±138	7.6% ±2.5 pp	12.7%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 7,485
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Same house	6,674 ±244	89.2% ±3.2 pp	88.8%	87.7%
Moved within same county	387 ±176	5.2% ±2.4 pp	5.9%	6.3%
Moved from a different county in the same state	229 ±135 · low precision	3.1% ±1.8 pp · low precision	3.4%	3.1%
Moved from a different state	191 ±108 · low precision	2.6% ±1.4 pp · low precision	1.4%	2.3%
Moved from abroad	4 ±10 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

4.3% of Iron Mountain residents (±1.8 percentage points) had no health insurance coverage when surveyed, compared with 4.9% in Michigan and 8.4% nationally. 87.5% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Iron Mountain	Michigan	U.S.	Compared with Michigan
People without health insurance Civilian noninstitutionalized population	4.3% ±1.8 pp	4.9%	8.4%	Not statistically different
Households with a broadband subscription Households	87.5% ±3.7 pp	90.5%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	9.6% ±3.0 pp	5.8%	6.2%	Higher

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Iron Mountain . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Iron Mountain housing and cost context or return to the city profile.