Wilmington, Ohio demographics

Wilmington, OH demographics: median age 36.3; 21.2% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Wilmington city, Ohio · Incorporated city · GEOID 3985792. The survey estimates a population of 12,620 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Wilmington is 36.3 years, with a 90% margin of error of 2.9 years. There are 5,567 households (±298). 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	36.3 ±2.9	39.7 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 12,620
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Under 18	2,708 ±382	21.5% ±3.0 pp	22.0%	22.0%
18–34	3,344 ±378	26.5% ±3.0 pp	22.1%	22.8%
35–64	3,958 ±476	31.4% ±3.8 pp	37.7%	38.0%
65 and older	2,610 ±330	20.7% ±2.6 pp	18.3%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 12,620
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Male	5,876 ±271	46.6% ±2.1 pp	49.3%	49.5%
Female	6,744 ±263	53.4% ±2.1 pp	50.7%	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: 12,620
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
White alone	10,874 ±333	86.2% ±2.6 pp	76.8%	61.0%
Black or African American alone	615 ±140	4.9% ±1.1 pp	12.2%	12.2%
American Indian and Alaska Native alone	16 ±17 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.9%
Asian alone	92 ±99 · low precision	0.7% ±0.8 pp · low precision	2.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	4 ±4 · low precision	0.0% ±0.0 pp · low precision	0.0%	0.2%
Some other race alone	291 ±221 · low precision	2.3% ±1.8 pp · low precision	1.8%	7.1%
Two or more races	728 ±222	5.8% ±1.8 pp	6.5%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 12,620
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Not Hispanic or Latino	12,263 ±247	97.2% ±1.9 pp	95.2%	80.7%
Hispanic or Latino	357 ±240 · low precision	2.8% ±1.9 pp · low precision	4.8%	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: 5,567
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Married-couple family	1,677 ±207	30.1% ±3.4 pp	44.4%	46.9%
Other family: male householder, no spouse present	289 ±122	5.2% ±2.2 pp	4.8%	5.1%
Other family: female householder, no spouse present	684 ±180	12.3% ±3.2 pp	12.0%	12.2%
Nonfamily: householder living alone	2,560 ±403	46.0% ±6.8 pp	32.0%	28.7%
Nonfamily: householder not living alone	357 ±143	6.4% ±2.5 pp	6.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 5,567
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Households with people under 18	1,178 ±158	21.2% ±2.6 pp	28.0%	29.5%
Households without people under 18	4,389 ±329	78.8% ±4.1 pp	72.0%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 5,567
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
One-person nonfamily households	2,560 ±403	46.0% ±6.8 pp	32.0%	28.7%
Two-person households	1,556 ±254	28.0% ±4.3 pp	34.6%	33.8%
Three-person households	547 ±189	9.8% ±3.4 pp	14.1%	15.3%
Four-person households	560 ±121	10.1% ±2.1 pp	11.3%	12.6%
Five-person households	286 ±100	5.1% ±1.8 pp	5.1%	5.9%
Six-person households	20 ±30 · low precision	0.4% ±0.5 pp · low precision	1.8%	2.2%
Seven or more people	38 ±47 · low precision	0.7% ±0.8 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: 12,620
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Native	12,210 ±273	96.8% ±2.1 pp	94.8%	85.9%
Foreign born	410 ±264 · low precision	3.2% ±2.1 pp · low precision	5.2%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 11,968
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
English only	11,511 ±301	96.2% ±2.0 pp	92.0%	77.7%
Spanish	241 ±162 · low precision	2.0% ±1.4 pp · low precision	2.6%	13.6%
French, Haitian, or Cajun	43 ±40 · low precision	0.4% ±0.3 pp · low precision	0.3%	0.7%
German or other West Germanic	22 ±25 · low precision	0.2% ±0.2 pp · low precision	0.9%	0.5%
Russian, Polish, or other Slavic	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.4%	0.7%
Other Indo-European	28 ±44 · low precision	0.2% ±0.4 pp · low precision	1.2%	2.0%
Korean	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.4%	1.1%
Vietnamese	22 ±38 · low precision	0.2% ±0.3 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	44 ±59 · low precision	0.4% ±0.5 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	16 ±23 · low precision	0.1% ±0.2 pp · low precision	0.6%	1.1%
Arabic	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.4%	0.5%
Other and unspecified	41 ±40 · low precision	0.3% ±0.3 pp · low precision	0.7%	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: 8,258
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Less than high school graduate	487 ±188	5.9% ±2.3 pp	8.2%	10.4%
High school graduate or equivalency	3,391 ±430	41.1% ±5.0 pp	32.1%	26.0%
Some college, no degree	1,479 ±305	17.9% ±3.6 pp	19.3%	19.1%
Associate’s degree	1,147 ±282	13.9% ±3.4 pp	9.0%	8.8%
Bachelor’s degree	1,129 ±275	13.7% ±3.3 pp	19.3%	21.6%
Graduate or professional degree	625 ±215	7.6% ±2.6 pp	12.2%	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: 12,556
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Same house	10,406 ±404	82.9% ±3.2 pp	88.1%	87.7%
Moved within same county	882 ±236	7.0% ±1.9 pp	6.7%	6.3%
Moved from a different county in the same state	888 ±296	7.1% ±2.4 pp	3.2%	3.1%
Moved from a different state	164 ±111 · low precision	1.3% ±0.9 pp · low precision	1.6%	2.3%
Moved from abroad	216 ±176 · low precision	1.7% ±1.4 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

7.0% of Wilmington residents (±2.1 percentage points) had no health insurance coverage when surveyed, compared with 6.4% in Ohio and 8.4% nationally. 86.1% 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	Wilmington	Ohio	U.S.	Compared with Ohio
People without health insurance Civilian noninstitutionalized population	7.0% ±2.1 pp	6.4%	8.4%	Not statistically different
Households with a broadband subscription Households	86.1% ±2.6 pp	90.1%	91.0%	Lower
Veterans Civilian population age 18 and older	11.2% ±2.3 pp	6.6%	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 Wilmington . 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 Wilmington housing and cost context or return to the city profile.