Keene, New Hampshire demographics

Keene, NH demographics: median age 37.6; 44.1% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Keene city, New Hampshire · Incorporated city · GEOID 3339300. The survey estimates a population of 22,939 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Keene is 37.6 years, with a 90% margin of error of 2.3 years. There are 9,399 households (±361). 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	37.6 ±2.3	43.3 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 22,939
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Under 18	3,234 ±372	14.1% ±1.6 pp	18.2%	22.0%
18–34	7,415 ±560	32.3% ±2.4 pp	21.4%	22.8%
35–64	7,811 ±669	34.1% ±2.9 pp	40.2%	38.0%
65 and older	4,479 ±422	19.5% ±1.8 pp	20.1%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 22,939
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Male	11,330 ±375	49.4% ±1.6 pp	49.9%	49.5%
Female	11,609 ±374	50.6% ±1.6 pp	50.1%	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: 22,939
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
White alone	21,128 ±310	92.1% ±1.3 pp	87.9%	61.0%
Black or African American alone	387 ±184	1.7% ±0.8 pp	1.5%	12.2%
American Indian and Alaska Native alone	16 ±21 · low precision	0.1% ±0.1 pp · low precision	0.1%	0.9%
Asian alone	161 ±117 · low precision	0.7% ±0.5 pp · low precision	2.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±23 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	127 ±128 · low precision	0.6% ±0.6 pp · low precision	1.4%	7.1%
Two or more races	1,120 ±313	4.9% ±1.4 pp	6.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 22,939
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Not Hispanic or Latino	22,506 ±162	98.1% ±0.7 pp	95.3%	80.7%
Hispanic or Latino	433 ±159	1.9% ±0.7 pp	4.7%	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: 9,399
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Married-couple family	3,639 ±369	38.7% ±3.6 pp	51.5%	46.9%
Other family: male householder, no spouse present	302 ±127	3.2% ±1.3 pp	4.5%	5.1%
Other family: female householder, no spouse present	816 ±198	8.7% ±2.1 pp	8.5%	12.2%
Nonfamily: householder living alone	3,499 ±464	37.2% ±4.7 pp	27.4%	28.7%
Nonfamily: householder not living alone	1,143 ±250	12.2% ±2.6 pp	8.1%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,399
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Households with people under 18	1,810 ±199	19.3% ±2.0 pp	26.0%	29.5%
Households without people under 18	7,589 ±416	80.7% ±3.2 pp	74.0%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,399
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
One-person nonfamily households	3,499 ±464	37.2% ±4.7 pp	27.4%	28.7%
Two-person households	3,524 ±389	37.5% ±3.9 pp	38.4%	33.8%
Three-person households	1,133 ±249	12.1% ±2.6 pp	15.4%	15.3%
Four-person households	777 ±177	8.3% ±1.9 pp	12.1%	12.6%
Five-person households	300 ±168 · low precision	3.2% ±1.8 pp · low precision	4.6%	5.9%
Six-person households	162 ±94 · low precision	1.7% ±1.0 pp · low precision	1.4%	2.2%
Seven or more people	4 ±24 · low precision	0.0% ±0.3 pp · low precision	0.7%	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: 22,939
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Native	22,035 ±247	96.1% ±1.1 pp	93.9%	85.9%
Foreign born	904 ±243	3.9% ±1.1 pp	6.1%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 22,142
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
English only	20,881 ±317	94.3% ±1.3 pp	92.1%	77.7%
Spanish	207 ±132 · low precision	0.9% ±0.6 pp · low precision	2.6%	13.6%
French, Haitian, or Cajun	248 ±125 · low precision	1.1% ±0.6 pp · low precision	1.2%	0.7%
German or other West Germanic	76 ±72 · low precision	0.3% ±0.3 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	132 ±127 · low precision	0.6% ±0.6 pp · low precision	0.5%	0.7%
Other Indo-European	256 ±139 · low precision	1.2% ±0.6 pp · low precision	1.4%	2.0%
Korean	0 ±23 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	56 ±66 · low precision	0.3% ±0.3 pp · low precision	0.4%	1.1%
Vietnamese	0 ±23 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	37 ±61 · low precision	0.2% ±0.3 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	12 ±15 · low precision	0.1% ±0.1 pp · low precision	0.6%	1.1%
Arabic	0 ±23 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Other and unspecified	237 ±157 · low precision	1.1% ±0.7 pp · low precision	0.4%	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: 15,859
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Less than high school graduate	906 ±242	5.7% ±1.5 pp	5.6%	10.4%
High school graduate or equivalency	4,024 ±589	25.4% ±3.7 pp	26.8%	26.0%
Some college, no degree	2,722 ±386	17.2% ±2.4 pp	17.2%	19.1%
Associate’s degree	1,210 ±317	7.6% ±2.0 pp	9.8%	8.8%
Bachelor’s degree	4,403 ±399	27.8% ±2.4 pp	24.5%	21.6%
Graduate or professional degree	2,594 ±400	16.4% ±2.5 pp	16.1%	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: 22,821
Category	Count ± MOE	Share ± MOE (pp)	New Hampshire	U.S.
Same house	19,213 ±554	84.2% ±2.4 pp	89.3%	87.7%
Moved within same county	1,894 ±410	8.3% ±1.8 pp	4.6%	6.3%
Moved from a different county in the same state	572 ±223	2.5% ±1.0 pp	2.2%	3.1%
Moved from a different state	1,041 ±233	4.6% ±1.0 pp	3.6%	2.3%
Moved from abroad	101 ±62 · low precision	0.4% ±0.3 pp · low precision	0.3%	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

5.5% of Keene residents (±1.3 percentage points) had no health insurance coverage when surveyed, compared with 5.3% in New Hampshire and 8.4% nationally. 91.3% 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	Keene	New Hampshire	U.S.	Compared with New Hampshire
People without health insurance Civilian noninstitutionalized population	5.5% ±1.3 pp	5.3%	8.4%	Not statistically different
Households with a broadband subscription Households	91.3% ±1.9 pp	92.9%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	7.0% ±1.2 pp	7.6%	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 Keene . 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 Keene housing and cost context or return to the city profile.