Ontario, Ohio demographics

Ontario, OH demographics: median age 39.9; 23.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Ontario city, Ohio · Incorporated city · GEOID 3958520. The survey estimates a population of 6,667 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Ontario is 39.9 years, with a 90% margin of error of 6.1 years. There are 2,732 households (±270). 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 39.9 ±6.1 39.7 ±0.2 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 6,667
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Under 18 1,473 ±292 22.1% ±4.4 pp 22.0% 22.0%
18–34 1,553 ±350 23.3% ±5.2 pp 22.1% 22.8%
35–64 2,442 ±425 36.6% ±6.4 pp 37.7% 38.0%
65 and older 1,199 ±267 18.0% ±4.0 pp 18.3% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 6,667
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Male 3,016 ±274 45.2% ±4.1 pp 49.3% 49.5%
Female 3,651 ±275 54.8% ±4.1 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: 6,667
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
White alone 5,684 ±354 85.3% ±5.3 pp 76.8% 61.0%
Black or African American alone 376 ±234 · low precision 5.6% ±3.5 pp · low precision 12.2% 12.2%
American Indian and Alaska Native alone 4 ±8 · low precision 0.1% ±0.1 pp · low precision 0.2% 0.9%
Asian alone 146 ±145 · low precision 2.2% ±2.2 pp · low precision 2.6% 6.0%
Native Hawaiian and Other Pacific Islander alone 0 ±18 · low precision 0.0% ±0.3 pp · low precision 0.0% 0.2%
Some other race alone 130 ±153 · low precision 1.9% ±2.3 pp · low precision 1.8% 7.1%
Two or more races 327 ±208 · low precision 4.9% ±3.1 pp · low precision 6.5% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 6,667
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Not Hispanic or Latino 6,554 ±92 98.3% ±1.3 pp 95.2% 80.7%
Hispanic or Latino 113 ±88 · low precision 1.7% ±1.3 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: 2,732
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Married-couple family 1,160 ±246 42.5% ±8.0 pp 44.4% 46.9%
Other family: male householder, no spouse present 96 ±80 · low precision 3.5% ±2.9 pp · low precision 4.8% 5.1%
Other family: female householder, no spouse present 363 ±154 13.3% ±5.5 pp 12.0% 12.2%
Nonfamily: householder living alone 991 ±302 36.3% ±10.5 pp 32.0% 28.7%
Nonfamily: householder not living alone 122 ±89 · low precision 4.5% ±3.2 pp · low precision 6.8% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 2,732
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Households with people under 18 653 ±127 23.9% ±4.0 pp 28.0% 29.5%
Households without people under 18 2,079 ±336 76.1% ±9.7 pp 72.0% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 2,732
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
One-person nonfamily households 991 ±302 36.3% ±10.5 pp 32.0% 28.7%
Two-person households 874 ±253 32.0% ±8.7 pp 34.6% 33.8%
Three-person households 299 ±171 · low precision 10.9% ±6.2 pp · low precision 14.1% 15.3%
Four-person households 320 ±122 11.7% ±4.3 pp 11.3% 12.6%
Five-person households 151 ±81 · low precision 5.5% ±2.9 pp · low precision 5.1% 5.9%
Six-person households 20 ±33 · low precision 0.7% ±1.2 pp · low precision 1.8% 2.2%
Seven or more people 77 ±85 · low precision 2.8% ±3.1 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: 6,667
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Native 6,214 ±309 93.2% ±4.6 pp 94.8% 85.9%
Foreign born 453 ±307 · low precision 6.8% ±4.6 pp · low precision 5.2% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 6,388
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
English only 5,855 ±347 91.7% ±5.1 pp 92.0% 77.7%
Spanish 59 ±59 · low precision 0.9% ±0.9 pp · low precision 2.6% 13.6%
French, Haitian, or Cajun 0 ±18 · low precision 0.0% ±0.3 pp · low precision 0.3% 0.7%
German or other West Germanic 66 ±110 · low precision 1.0% ±1.7 pp · low precision 0.9% 0.5%
Russian, Polish, or other Slavic 87 ±92 · low precision 1.4% ±1.4 pp · low precision 0.4% 0.7%
Other Indo-European 87 ±109 · low precision 1.4% ±1.7 pp · low precision 1.2% 2.0%
Korean 0 ±18 · low precision 0.0% ±0.3 pp · low precision 0.1% 0.3%
Chinese, including Mandarin and Cantonese 0 ±18 · low precision 0.0% ±0.3 pp · low precision 0.4% 1.1%
Vietnamese 0 ±18 · low precision 0.0% ±0.3 pp · low precision 0.1% 0.5%
Tagalog, including Filipino 0 ±18 · low precision 0.0% ±0.3 pp · low precision 0.1% 0.6%
Other Asian and Pacific Island 59 ±99 · low precision 0.9% ±1.5 pp · low precision 0.6% 1.1%
Arabic 175 ±210 · low precision 2.7% ±3.3 pp · low precision 0.4% 0.5%
Other and unspecified 0 ±18 · low precision 0.0% ±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: 4,658
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Less than high school graduate 361 ±200 · low precision 7.8% ±4.3 pp · low precision 8.2% 10.4%
High school graduate or equivalency 1,729 ±398 37.1% ±8.3 pp 32.1% 26.0%
Some college, no degree 997 ±269 21.4% ±5.6 pp 19.3% 19.1%
Associate’s degree 474 ±235 10.2% ±5.0 pp 9.0% 8.8%
Bachelor’s degree 680 ±207 14.6% ±4.4 pp 19.3% 21.6%
Graduate or professional degree 417 ±207 9.0% ±4.4 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: 6,667
Category Count ± MOE Share ± MOE (pp) Ohio U.S.
Same house 5,727 ±379 85.9% ±5.7 pp 88.1% 87.7%
Moved within same county 393 ±217 · low precision 5.9% ±3.3 pp · low precision 6.7% 6.3%
Moved from a different county in the same state 381 ±279 · low precision 5.7% ±4.2 pp · low precision 3.2% 3.1%
Moved from a different state 166 ±168 · low precision 2.5% ±2.5 pp · low precision 1.6% 2.3%
Moved from abroad 0 ±18 · low precision 0.0% ±0.3 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

4.9% of Ontario residents (±3.0 percentage points) had no health insurance coverage when surveyed, compared with 6.4% in Ohio and 8.4% nationally. 92.1% 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 Ontario Ohio U.S. Compared with Ohio
People without health insurance Civilian noninstitutionalized population 4.9% ±3.0 pp · low precision 6.4% 8.4% Not statistically different
Households with a broadband subscription Households 92.1% ±4.2 pp 90.1% 91.0% Not statistically different
Veterans Civilian population age 18 and older 6.7% ±3.5 pp · low precision 6.6% 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 Ontario . 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 Ontario housing and cost context or return to the city profile.

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