Ionia, Michigan demographics

Ionia, MI demographics: median age 36.6; 10.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Ionia city, Michigan · Incorporated city · GEOID 2640860. The survey estimates a population of 12,753 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Ionia is 36.6 years, with a 90% margin of error of 2.2 years. There are 3,939 households (±300). 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	36.6 ±2.2	40.2 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 12,753
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Under 18	1,888 ±327	14.8% ±2.6 pp	21.2%	22.0%
18–34	4,167 ±553	32.7% ±4.3 pp	22.4%	22.8%
35–64	5,138 ±545	40.3% ±4.3 pp	37.8%	38.0%
65 and older	1,560 ±299	12.2% ±2.3 pp	18.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 12,753
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Male	8,218 ±335	64.4% ±2.6 pp	49.6%	49.5%
Female	4,535 ±336	35.6% ±2.6 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: 12,753
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
White alone	9,420 ±433	73.9% ±3.4 pp	73.7%	61.0%
Black or African American alone	1,633 ±226	12.8% ±1.8 pp	13.3%	12.2%
American Indian and Alaska Native alone	128 ±81 · low precision	1.0% ±0.6 pp · low precision	0.5%	0.9%
Asian alone	5 ±10 · low precision	0.0% ±0.1 pp · low precision	3.4%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	238 ±205 · low precision	1.9% ±1.6 pp · low precision	1.9%	7.1%
Two or more races	1,329 ±371	10.4% ±2.9 pp	7.1%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 12,753
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Not Hispanic or Latino	11,603 ±258	91.0% ±2.0 pp	94.1%	80.7%
Hispanic or Latino	1,150 ±253	9.0% ±2.0 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: 3,939
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Married-couple family	1,453 ±233	36.9% ±5.2 pp	46.1%	46.9%
Other family: male householder, no spouse present	165 ±101 · low precision	4.2% ±2.5 pp · low precision	4.9%	5.1%
Other family: female householder, no spouse present	434 ±148	11.0% ±3.7 pp	11.5%	12.2%
Nonfamily: householder living alone	1,283 ±298	32.6% ±7.1 pp	30.7%	28.7%
Nonfamily: householder not living alone	604 ±328 · low precision	15.3% ±8.2 pp · low precision	6.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 3,939
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Households with people under 18	1,046 ±203	26.6% ±4.7 pp	27.1%	29.5%
Households without people under 18	2,893 ±410	73.4% ±8.8 pp	72.9%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 3,939
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
One-person nonfamily households	1,283 ±298	32.6% ±7.1 pp	30.7%	28.7%
Two-person households	1,439 ±401	36.5% ±9.8 pp	35.1%	33.8%
Three-person households	435 ±141	11.0% ±3.5 pp	14.3%	15.3%
Four-person households	373 ±160	9.5% ±4.0 pp	11.7%	12.6%
Five-person households	406 ±151	10.3% ±3.8 pp	5.2%	5.9%
Six-person households	3 ±20 · low precision	0.1% ±0.5 pp · low precision	1.9%	2.2%
Seven or more people	0 ±25 · low precision	0.0% ±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: 12,753
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Native	12,508 ±138	98.1% ±1.1 pp	92.8%	85.9%
Foreign born	245 ±139 · 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: 12,155
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
English only	11,612 ±283	95.5% ±1.6 pp	89.6%	77.7%
Spanish	461 ±185	3.8% ±1.5 pp	3.1%	13.6%
French, Haitian, or Cajun	17 ±20 · low precision	0.1% ±0.2 pp · low precision	0.2%	0.7%
German or other West Germanic	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.5%	0.5%
Russian, Polish, or other Slavic	20 ±26 · low precision	0.2% ±0.2 pp · low precision	0.6%	0.7%
Other Indo-European	32 ±30 · low precision	0.3% ±0.2 pp · low precision	1.8%	2.0%
Korean	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.5%	1.1%
Vietnamese	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	0 ±18 · low precision	0.0% ±0.1 pp · low precision	0.8%	1.1%
Arabic	0 ±18 · low precision	0.0% ±0.1 pp · low precision	1.8%	0.5%
Other and unspecified	13 ±16 · low precision	0.1% ±0.1 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: 9,581
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Less than high school graduate	1,556 ±338	16.2% ±3.5 pp	7.9%	10.4%
High school graduate or equivalency	4,239 ±498	44.2% ±4.9 pp	28.0%	26.0%
Some college, no degree	1,995 ±339	20.8% ±3.4 pp	21.9%	19.1%
Associate’s degree	829 ±249	8.7% ±2.6 pp	9.8%	8.8%
Bachelor’s degree	677 ±291	7.1% ±3.0 pp	19.7%	21.6%
Graduate or professional degree	285 ±146 · low precision	3.0% ±1.5 pp · low precision	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: 12,650
Category	Count ± MOE	Share ± MOE (pp)	Michigan	U.S.
Same house	9,729 ±565	76.9% ±4.4 pp	88.8%	87.7%
Moved within same county	1,174 ±409	9.3% ±3.2 pp	5.9%	6.3%
Moved from a different county in the same state	1,606 ±478	12.7% ±3.8 pp	3.4%	3.1%
Moved from a different state	41 ±39 · low precision	0.3% ±0.3 pp · low precision	1.4%	2.3%
Moved from abroad	100 ±92 · low precision	0.8% ±0.7 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

7.9% of Ionia residents (±2.5 percentage points) had no health insurance coverage when surveyed, compared with 4.9% in Michigan and 8.4% nationally. 83.2% 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	Ionia	Michigan	U.S.	Compared with Michigan
People without health insurance Civilian noninstitutionalized population	7.9% ±2.5 pp	4.9%	8.4%	Higher
Households with a broadband subscription Households	83.2% ±4.1 pp	90.5%	91.0%	Lower
Veterans Civilian population age 18 and older	5.3% ±2.5 pp	5.8%	6.2%	Not statistically different

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 Ionia . 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 Ionia housing and cost context or return to the city profile.