Dayton, Ohio demographics

Dayton, OH demographics: median age 34.1; 21.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Dayton city, Ohio · Incorporated city · GEOID 3921000. The survey estimates a population of 136,579 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Dayton is 34.1 years, with a 90% margin of error of 1.0 years. There are 58,477 households (±1,345). 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	34.1 ±1.0	39.7 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 136,579
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Under 18	29,159 ±1,388	21.3% ±1.0 pp	22.0%	22.0%
18–34	40,747 ±1,673	29.8% ±1.2 pp	22.1%	22.8%
35–64	47,437 ±1,689	34.7% ±1.2 pp	37.7%	38.0%
65 and older	19,236 ±1,029	14.1% ±0.8 pp	18.3%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 136,579
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Male	67,573 ±1,310	49.5% ±1.0 pp	49.3%	49.5%
Female	69,006 ±1,318	50.5% ±1.0 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: 136,579
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
White alone	69,675 ±1,928	51.0% ±1.4 pp	76.8%	61.0%
Black or African American alone	51,560 ±1,802	37.8% ±1.3 pp	12.2%	12.2%
American Indian and Alaska Native alone	260 ±139 · low precision	0.2% ±0.1 pp · low precision	0.2%	0.9%
Asian alone	1,920 ±371	1.4% ±0.3 pp	2.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	39 ±57 · low precision	0.0% ±0.0 pp · low precision	0.0%	0.2%
Some other race alone	3,263 ±761	2.4% ±0.6 pp	1.8%	7.1%
Two or more races	9,862 ±1,187	7.2% ±0.9 pp	6.5%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 136,579
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Not Hispanic or Latino	128,820 ±916	94.3% ±0.7 pp	95.2%	80.7%
Hispanic or Latino	7,759 ±907	5.7% ±0.7 pp	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: 58,477
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Married-couple family	13,459 ±779	23.0% ±1.2 pp	44.4%	46.9%
Other family: male householder, no spouse present	3,193 ±454	5.5% ±0.8 pp	4.8%	5.1%
Other family: female householder, no spouse present	11,591 ±741	19.8% ±1.2 pp	12.0%	12.2%
Nonfamily: householder living alone	25,075 ±1,234	42.9% ±1.9 pp	32.0%	28.7%
Nonfamily: householder not living alone	5,159 ±640	8.8% ±1.1 pp	6.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 58,477
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Households with people under 18	15,038 ±651	25.7% ±0.9 pp	28.0%	29.5%
Households without people under 18	43,439 ±1,517	74.3% ±2.0 pp	72.0%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 58,477
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
One-person nonfamily households	25,075 ±1,234	42.9% ±1.9 pp	32.0%	28.7%
Two-person households	17,589 ±1,104	30.1% ±1.8 pp	34.6%	33.8%
Three-person households	8,080 ±821	13.8% ±1.4 pp	14.1%	15.3%
Four-person households	3,782 ±436	6.5% ±0.7 pp	11.3%	12.6%
Five-person households	2,330 ±360	4.0% ±0.6 pp	5.1%	5.9%
Six-person households	944 ±236	1.6% ±0.4 pp	1.8%	2.2%
Seven or more people	677 ±195	1.2% ±0.3 pp	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: 136,579
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Native	129,289 ±992	94.7% ±0.7 pp	94.8%	85.9%
Foreign born	7,290 ±990	5.3% ±0.7 pp	5.2%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 127,942
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
English only	117,693 ±1,459	92.0% ±1.0 pp	92.0%	77.7%
Spanish	5,315 ±830	4.2% ±0.6 pp	2.6%	13.6%
French, Haitian, or Cajun	351 ±219 · low precision	0.3% ±0.2 pp · low precision	0.3%	0.7%
German or other West Germanic	435 ±210	0.3% ±0.2 pp	0.9%	0.5%
Russian, Polish, or other Slavic	270 ±142 · low precision	0.2% ±0.1 pp · low precision	0.4%	0.7%
Other Indo-European	461 ±250 · low precision	0.4% ±0.2 pp · low precision	1.2%	2.0%
Korean	86 ±67 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	237 ±117	0.2% ±0.1 pp	0.4%	1.1%
Vietnamese	93 ±68 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	222 ±219 · low precision	0.2% ±0.2 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	1,011 ±321	0.8% ±0.3 pp	0.6%	1.1%
Arabic	705 ±596 · low precision	0.6% ±0.5 pp · low precision	0.4%	0.5%
Other and unspecified	1,063 ±352	0.8% ±0.3 pp	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: 87,653
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Less than high school graduate	10,335 ±925	11.8% ±1.0 pp	8.2%	10.4%
High school graduate or equivalency	28,043 ±1,603	32.0% ±1.7 pp	32.1%	26.0%
Some college, no degree	22,564 ±1,630	25.7% ±1.8 pp	19.3%	19.1%
Associate’s degree	7,761 ±760	8.9% ±0.8 pp	9.0%	8.8%
Bachelor’s degree	11,910 ±1,002	13.6% ±1.1 pp	19.3%	21.6%
Graduate or professional degree	7,040 ±603	8.0% ±0.7 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: 134,631
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Same house	106,913 ±2,401	79.4% ±1.8 pp	88.1%	87.7%
Moved within same county	16,878 ±1,925	12.5% ±1.4 pp	6.7%	6.3%
Moved from a different county in the same state	6,241 ±1,093	4.6% ±0.8 pp	3.2%	3.1%
Moved from a different state	3,578 ±572	2.7% ±0.4 pp	1.6%	2.3%
Moved from abroad	1,021 ±334	0.8% ±0.2 pp	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

8.2% of Dayton residents (±0.7 percentage points) had no health insurance coverage when surveyed, compared with 6.4% in Ohio and 8.4% nationally. 85.5% 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	Dayton	Ohio	U.S.	Compared with Ohio
People without health insurance Civilian noninstitutionalized population	8.2% ±0.7 pp	6.4%	8.4%	Higher
Households with a broadband subscription Households	85.5% ±0.7 pp	90.1%	91.0%	Lower
Veterans Civilian population age 18 and older	7.4% ±0.6 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 Dayton . 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 Dayton housing and cost context or return to the city profile.