Caribou, Maine demographics

Caribou, ME demographics: median age 51.3; 28.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Caribou city, Maine · Incorporated city · GEOID 2310565. The survey estimates a population of 7,382 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Caribou is 51.3 years, with a 90% margin of error of 1.7 years. There are 3,542 households (±209). 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	51.3 ±1.7	44.8 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 7,382
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Under 18	1,195 ±197	16.2% ±2.7 pp	18.1%	22.0%
18–34	1,249 ±271	16.9% ±3.7 pp	20.0%	22.8%
35–64	2,922 ±354	39.6% ±4.8 pp	39.6%	38.0%
65 and older	2,016 ±293	27.3% ±4.0 pp	22.4%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 7,382
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Male	3,878 ±206	52.5% ±2.8 pp	49.3%	49.5%
Female	3,504 ±210	47.5% ±2.8 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: 7,382
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
White alone	6,779 ±180	91.8% ±2.4 pp	90.5%	61.0%
Black or African American alone	11 ±18 · low precision	0.1% ±0.2 pp · low precision	1.8%	12.2%
American Indian and Alaska Native alone	109 ±72 · low precision	1.5% ±1.0 pp · low precision	0.4%	0.9%
Asian alone	30 ±24 · low precision	0.4% ±0.3 pp · low precision	1.2%	6.0%
Native Hawaiian and Other Pacific Islander alone	25 ±35 · low precision	0.3% ±0.5 pp · low precision	0.0%	0.2%
Some other race alone	2 ±6 · low precision	0.0% ±0.1 pp · low precision	0.8%	7.1%
Two or more races	426 ±166	5.8% ±2.2 pp	5.3%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 7,382
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Not Hispanic or Latino	7,315 ±66	99.1% ±0.8 pp	97.8%	80.7%
Hispanic or Latino	67 ±55 · low precision	0.9% ±0.7 pp · low precision	2.2%	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: 3,542
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Married-couple family	1,503 ±181	42.4% ±4.5 pp	48.0%	46.9%
Other family: male householder, no spouse present	133 ±80 · low precision	3.8% ±2.2 pp · low precision	4.1%	5.1%
Other family: female householder, no spouse present	258 ±105	7.3% ±2.9 pp	8.6%	12.2%
Nonfamily: householder living alone	1,378 ±292	38.9% ±7.9 pp	30.7%	28.7%
Nonfamily: householder not living alone	270 ±104	7.6% ±2.9 pp	8.5%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 3,542
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Households with people under 18	666 ±117	18.8% ±3.1 pp	23.7%	29.5%
Households without people under 18	2,876 ±262	81.2% ±5.6 pp	76.3%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 3,542
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
One-person nonfamily households	1,378 ±292	38.9% ±7.9 pp	30.7%	28.7%
Two-person households	1,287 ±201	36.3% ±5.3 pp	39.1%	33.8%
Three-person households	389 ±119	11.0% ±3.3 pp	13.9%	15.3%
Four-person households	386 ±127	10.9% ±3.5 pp	10.6%	12.6%
Five-person households	67 ±56 · low precision	1.9% ±1.6 pp · low precision	3.9%	5.9%
Six-person households	13 ±21 · low precision	0.4% ±0.6 pp · low precision	1.2%	2.2%
Seven or more people	22 ±31 · low precision	0.6% ±0.9 pp · low precision	0.6%	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: 7,382
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Native	7,087 ±117	96.0% ±1.5 pp	95.9%	85.9%
Foreign born	295 ±116	4.0% ±1.6 pp	4.1%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 7,056
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
English only	6,399 ±234	90.7% ±2.9 pp	94.0%	77.7%
Spanish	18 ±19 · low precision	0.3% ±0.3 pp · low precision	1.0%	13.6%
French, Haitian, or Cajun	593 ±178	8.4% ±2.5 pp	2.3%	0.7%
German or other West Germanic	3 ±5 · low precision	0.0% ±0.1 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	0 ±15 · low precision	0.0% ±0.2 pp · low precision	0.3%	0.7%
Other Indo-European	3 ±6 · low precision	0.0% ±0.1 pp · low precision	0.6%	2.0%
Korean	0 ±15 · low precision	0.0% ±0.2 pp · low precision	0.0%	0.3%
Chinese, including Mandarin and Cantonese	0 ±15 · low precision	0.0% ±0.2 pp · low precision	0.2%	1.1%
Vietnamese	0 ±15 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	0 ±15 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	9 ±14 · low precision	0.1% ±0.2 pp · low precision	0.2%	1.1%
Arabic	0 ±15 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.5%
Other and unspecified	31 ±33 · low precision	0.4% ±0.5 pp · low precision	0.6%	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: 5,675
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Less than high school graduate	498 ±156	8.8% ±2.7 pp	5.2%	10.4%
High school graduate or equivalency	1,697 ±283	29.9% ±4.8 pp	30.1%	26.0%
Some college, no degree	1,194 ±238	21.0% ±4.1 pp	18.1%	19.1%
Associate’s degree	652 ±200	11.5% ±3.5 pp	10.4%	8.8%
Bachelor’s degree	1,037 ±254	18.3% ±4.4 pp	22.5%	21.6%
Graduate or professional degree	597 ±145	10.5% ±2.5 pp	13.7%	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: 7,373
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Same house	6,560 ±240	89.0% ±3.2 pp	89.4%	87.7%
Moved within same county	729 ±231	9.9% ±3.1 pp	5.1%	6.3%
Moved from a different county in the same state	25 ±26 · low precision	0.3% ±0.4 pp · low precision	2.4%	3.1%
Moved from a different state	29 ±50 · low precision	0.4% ±0.7 pp · low precision	2.7%	2.3%
Moved from abroad	30 ±36 · low precision	0.4% ±0.5 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

4.5% of Caribou residents (±1.8 percentage points) had no health insurance coverage when surveyed, compared with 6.2% in Maine and 8.4% nationally. 82.9% 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	Caribou	Maine	U.S.	Compared with Maine
People without health insurance Civilian noninstitutionalized population	4.5% ±1.8 pp	6.2%	8.4%	Not statistically different
Households with a broadband subscription Households	82.9% ±6.1 pp	90.3%	91.0%	Lower
Veterans Civilian population age 18 and older	10.6% ±2.7 pp	8.4%	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 Caribou . 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 Caribou housing and cost context or return to the city profile.