Carlisle, Pennsylvania demographics

Carlisle, PA demographics: median age 35.8; 37.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Carlisle borough, Pennsylvania · Incorporated borough · GEOID 4211272. The survey estimates a population of 21,852 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Carlisle is 35.8 years, with a 90% margin of error of 3.4 years. There are 9,223 households (±515). 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	35.8 ±3.4	40.9 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 21,852
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Under 18	3,321 ±482	15.2% ±2.2 pp	20.4%	22.0%
18–34	7,469 ±706	34.2% ±3.2 pp	21.9%	22.8%
35–64	6,976 ±664	31.9% ±3.0 pp	38.1%	38.0%
65 and older	4,086 ±543	18.7% ±2.5 pp	19.5%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 21,852
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Male	11,300 ±489	51.7% ±2.2 pp	49.3%	49.5%
Female	10,552 ±488	48.3% ±2.2 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: 21,852
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
White alone	17,087 ±888	78.2% ±4.1 pp	74.5%	61.0%
Black or African American alone	2,207 ±583	10.1% ±2.7 pp	10.6%	12.2%
American Indian and Alaska Native alone	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.9%
Asian alone	579 ±229	2.6% ±1.0 pp	3.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	1 ±4 · low precision	0.0% ±0.0 pp · low precision	0.0%	0.2%
Some other race alone	451 ±236 · low precision	2.1% ±1.1 pp · low precision	3.7%	7.1%
Two or more races	1,527 ±485	7.0% ±2.2 pp	7.1%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 21,852
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Not Hispanic or Latino	20,012 ±484	91.6% ±2.2 pp	91.3%	80.7%
Hispanic or Latino	1,840 ±483	8.4% ±2.2 pp	8.7%	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: 9,223
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Married-couple family	3,120 ±347	33.8% ±3.3 pp	46.2%	46.9%
Other family: male householder, no spouse present	501 ±239	5.4% ±2.6 pp	4.7%	5.1%
Other family: female householder, no spouse present	657 ±209	7.1% ±2.2 pp	11.5%	12.2%
Nonfamily: householder living alone	4,250 ±593	46.1% ±5.9 pp	30.9%	28.7%
Nonfamily: householder not living alone	695 ±257	7.5% ±2.8 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,223
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Households with people under 18	1,737 ±269	18.8% ±2.7 pp	27.0%	29.5%
Households without people under 18	7,486 ±664	81.2% ±5.6 pp	73.0%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,223
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
One-person nonfamily households	4,250 ±593	46.1% ±5.9 pp	30.9%	28.7%
Two-person households	2,692 ±432	29.2% ±4.4 pp	34.7%	33.8%
Three-person households	1,169 ±257	12.7% ±2.7 pp	14.9%	15.3%
Four-person households	697 ±207	7.6% ±2.2 pp	11.7%	12.6%
Five-person households	296 ±157 · low precision	3.2% ±1.7 pp · low precision	5.0%	5.9%
Six-person households	38 ±52 · low precision	0.4% ±0.6 pp · low precision	1.7%	2.2%
Seven or more people	81 ±64 · low precision	0.9% ±0.7 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: 21,852
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Native	20,118 ±513	92.1% ±2.3 pp	92.3%	85.9%
Foreign born	1,734 ±511	7.9% ±2.3 pp	7.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 21,108
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
English only	18,756 ±584	88.9% ±2.6 pp	87.6%	77.7%
Spanish	1,006 ±301	4.8% ±1.4 pp	5.6%	13.6%
French, Haitian, or Cajun	35 ±37 · low precision	0.2% ±0.2 pp · low precision	0.5%	0.7%
German or other West Germanic	79 ±99 · low precision	0.4% ±0.5 pp · low precision	0.9%	0.5%
Russian, Polish, or other Slavic	266 ±264 · low precision	1.3% ±1.3 pp · low precision	0.8%	0.7%
Other Indo-European	155 ±144 · low precision	0.7% ±0.7 pp · low precision	1.7%	2.0%
Korean	8 ±16 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	34 ±30 · low precision	0.2% ±0.1 pp · low precision	0.8%	1.1%
Vietnamese	150 ±95 · low precision	0.7% ±0.4 pp · low precision	0.3%	0.5%
Tagalog, including Filipino	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	180 ±151 · low precision	0.9% ±0.7 pp · low precision	0.7%	1.1%
Arabic	324 ±212 · low precision	1.5% ±1.0 pp · low precision	0.4%	0.5%
Other and unspecified	115 ±114 · low precision	0.5% ±0.5 pp · low precision	0.5%	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: 14,002
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Less than high school graduate	892 ±319	6.4% ±2.3 pp	7.9%	10.4%
High school graduate or equivalency	4,948 ±686	35.3% ±4.6 pp	32.9%	26.0%
Some college, no degree	1,810 ±359	12.9% ±2.5 pp	15.1%	19.1%
Associate’s degree	1,039 ±290	7.4% ±2.0 pp	8.9%	8.8%
Bachelor’s degree	2,942 ±450	21.0% ±3.1 pp	20.9%	21.6%
Graduate or professional degree	2,371 ±409	16.9% ±2.8 pp	14.3%	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: 21,763
Category	Count ± MOE	Share ± MOE (pp)	Pennsylvania	U.S.
Same house	16,536 ±688	76.0% ±3.2 pp	89.3%	87.7%
Moved within same county	2,471 ±445	11.4% ±2.0 pp	5.6%	6.3%
Moved from a different county in the same state	1,511 ±450	6.9% ±2.1 pp	2.6%	3.1%
Moved from a different state	769 ±233	3.5% ±1.1 pp	1.9%	2.3%
Moved from abroad	476 ±201	2.2% ±0.9 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

5.6% of Carlisle residents (±1.7 percentage points) had no health insurance coverage when surveyed, compared with 5.6% in Pennsylvania and 8.4% nationally. 89.4% 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	Carlisle	Pennsylvania	U.S.	Compared with Pennsylvania
People without health insurance Civilian noninstitutionalized population	5.6% ±1.7 pp	5.6%	8.4%	Not statistically different
Households with a broadband subscription Households	89.4% ±2.2 pp	89.7%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	7.6% ±2.0 pp	6.1%	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 Carlisle . 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 Carlisle housing and cost context or return to the city profile.