Gahanna, Ohio demographics

Gahanna, OH demographics: median age 38.8; 51.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Gahanna city, Ohio · Incorporated city · GEOID 3929106. The survey estimates a population of 35,486 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Gahanna is 38.8 years, with a 90% margin of error of 1.6 years. There are 14,254 households (±490). 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	38.8 ±1.6	39.7 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 35,486
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Under 18	8,999 ±853	25.4% ±2.4 pp	22.0%	22.0%
18–34	6,521 ±715	18.4% ±2.0 pp	22.1%	22.8%
35–64	14,023 ±927	39.5% ±2.6 pp	37.7%	38.0%
65 and older	5,943 ±591	16.7% ±1.7 pp	18.3%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 35,486
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Male	16,797 ±719	47.3% ±2.0 pp	49.3%	49.5%
Female	18,689 ±721	52.7% ±2.0 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: 35,486
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
White alone	24,855 ±1,141	70.0% ±3.2 pp	76.8%	61.0%
Black or African American alone	5,932 ±1,035	16.7% ±2.9 pp	12.2%	12.2%
American Indian and Alaska Native alone	0 ±27 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.9%
Asian alone	1,134 ±485	3.2% ±1.4 pp	2.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	11 ±15 · low precision	0.0% ±0.0 pp · low precision	0.0%	0.2%
Some other race alone	848 ±628 · low precision	2.4% ±1.8 pp · low precision	1.8%	7.1%
Two or more races	2,706 ±604	7.6% ±1.7 pp	6.5%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 35,486
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Not Hispanic or Latino	34,393 ±437	96.9% ±1.2 pp	95.2%	80.7%
Hispanic or Latino	1,093 ±435	3.1% ±1.2 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: 14,254
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Married-couple family	7,646 ±439	53.6% ±2.5 pp	44.4%	46.9%
Other family: male householder, no spouse present	569 ±144	4.0% ±1.0 pp	4.8%	5.1%
Other family: female householder, no spouse present	1,500 ±315	10.5% ±2.2 pp	12.0%	12.2%
Nonfamily: householder living alone	3,568 ±496	25.0% ±3.4 pp	32.0%	28.7%
Nonfamily: householder not living alone	971 ±299	6.8% ±2.1 pp	6.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 14,254
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Households with people under 18	4,833 ±297	33.9% ±1.7 pp	28.0%	29.5%
Households without people under 18	9,421 ±675	66.1% ±4.2 pp	72.0%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 14,254
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
One-person nonfamily households	3,568 ±496	25.0% ±3.4 pp	32.0%	28.7%
Two-person households	5,268 ±625	37.0% ±4.2 pp	34.6%	33.8%
Three-person households	2,361 ±436	16.6% ±3.0 pp	14.1%	15.3%
Four-person households	1,763 ±269	12.4% ±1.8 pp	11.3%	12.6%
Five-person households	916 ±250	6.4% ±1.7 pp	5.1%	5.9%
Six-person households	204 ±148 · low precision	1.4% ±1.0 pp · low precision	1.8%	2.2%
Seven or more people	174 ±111 · low precision	1.2% ±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: 35,486
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Native	33,268 ±569	93.7% ±1.6 pp	94.8%	85.9%
Foreign born	2,218 ±570	6.3% ±1.6 pp	5.2%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 33,436
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
English only	31,601 ±614	94.5% ±1.4 pp	92.0%	77.7%
Spanish	233 ±175 · low precision	0.7% ±0.5 pp · low precision	2.6%	13.6%
French, Haitian, or Cajun	119 ±112 · low precision	0.4% ±0.3 pp · low precision	0.3%	0.7%
German or other West Germanic	82 ±58 · low precision	0.2% ±0.2 pp · low precision	0.9%	0.5%
Russian, Polish, or other Slavic	136 ±123 · low precision	0.4% ±0.4 pp · low precision	0.4%	0.7%
Other Indo-European	535 ±339 · low precision	1.6% ±1.0 pp · low precision	1.2%	2.0%
Korean	52 ±78 · low precision	0.2% ±0.2 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	73 ±60 · low precision	0.2% ±0.2 pp · low precision	0.4%	1.1%
Vietnamese	150 ±136 · low precision	0.4% ±0.4 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	16 ±27 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	94 ±73 · low precision	0.3% ±0.2 pp · low precision	0.6%	1.1%
Arabic	21 ±35 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.5%
Other and unspecified	324 ±280 · low precision	1.0% ±0.8 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: 24,678
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Less than high school graduate	864 ±260	3.5% ±1.0 pp	8.2%	10.4%
High school graduate or equivalency	4,742 ±619	19.2% ±2.5 pp	32.1%	26.0%
Some college, no degree	4,411 ±559	17.9% ±2.2 pp	19.3%	19.1%
Associate’s degree	1,902 ±364	7.7% ±1.5 pp	9.0%	8.8%
Bachelor’s degree	7,884 ±629	31.9% ±2.4 pp	19.3%	21.6%
Graduate or professional degree	4,875 ±601	19.8% ±2.4 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: 35,152
Category	Count ± MOE	Share ± MOE (pp)	Ohio	U.S.
Same house	32,667 ±543	92.9% ±1.5 pp	88.1%	87.7%
Moved within same county	1,789 ±468	5.1% ±1.3 pp	6.7%	6.3%
Moved from a different county in the same state	328 ±154	0.9% ±0.4 pp	3.2%	3.1%
Moved from a different state	338 ±147	1.0% ±0.4 pp	1.6%	2.3%
Moved from abroad	30 ±39 · 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

2.4% of Gahanna residents (±0.7 percentage points) had no health insurance coverage when surveyed, compared with 6.4% in Ohio and 8.4% nationally. 96.7% 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	Gahanna	Ohio	U.S.	Compared with Ohio
People without health insurance Civilian noninstitutionalized population	2.4% ±0.7 pp	6.4%	8.4%	Lower
Households with a broadband subscription Households	96.7% ±1.0 pp	90.1%	91.0%	Higher
Veterans Civilian population age 18 and older	5.9% ±1.3 pp	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 Gahanna . 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 Gahanna housing and cost context or return to the city profile.