Auburn, Maine demographics

Auburn, ME demographics: median age 41.4; 27.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Auburn city, Maine · Incorporated city · GEOID 2302060. The survey estimates a population of 24,602 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Auburn is 41.4 years, with a 90% margin of error of 2.7 years. There are 10,337 households (±406). 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	41.4 ±2.7	44.8 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 24,602
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Under 18	5,254 ±567	21.4% ±2.3 pp	18.1%	22.0%
18–34	5,137 ±530	20.9% ±2.2 pp	20.0%	22.8%
35–64	9,333 ±657	37.9% ±2.7 pp	39.6%	38.0%
65 and older	4,878 ±500	19.8% ±2.0 pp	22.4%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 24,602
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Male	12,016 ±402	48.8% ±1.6 pp	49.3%	49.5%
Female	12,586 ±401	51.2% ±1.6 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: 24,602
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
White alone	22,068 ±394	89.7% ±1.6 pp	90.5%	61.0%
Black or African American alone	879 ±258	3.6% ±1.0 pp	1.8%	12.2%
American Indian and Alaska Native alone	16 ±20 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.9%
Asian alone	312 ±142	1.3% ±0.6 pp	1.2%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±20 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	170 ±92 · low precision	0.7% ±0.4 pp · low precision	0.8%	7.1%
Two or more races	1,157 ±299	4.7% ±1.2 pp	5.3%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 24,602
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Not Hispanic or Latino	23,865 ±222	97.0% ±0.9 pp	97.8%	80.7%
Hispanic or Latino	737 ±217	3.0% ±0.9 pp	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: 10,337
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Married-couple family	4,462 ±356	43.2% ±3.0 pp	48.0%	46.9%
Other family: male householder, no spouse present	394 ±187	3.8% ±1.8 pp	4.1%	5.1%
Other family: female householder, no spouse present	908 ±210	8.8% ±2.0 pp	8.6%	12.2%
Nonfamily: householder living alone	3,565 ±427	34.5% ±3.9 pp	30.7%	28.7%
Nonfamily: householder not living alone	1,008 ±235	9.8% ±2.2 pp	8.5%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 10,337
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Households with people under 18	2,575 ±251	24.9% ±2.2 pp	23.7%	29.5%
Households without people under 18	7,762 ±486	75.1% ±3.7 pp	76.3%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 10,337
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
One-person nonfamily households	3,565 ±427	34.5% ±3.9 pp	30.7%	28.7%
Two-person households	3,818 ±409	36.9% ±3.7 pp	39.1%	33.8%
Three-person households	1,174 ±290	11.4% ±2.8 pp	13.9%	15.3%
Four-person households	940 ±186	9.1% ±1.8 pp	10.6%	12.6%
Five-person households	361 ±102	3.5% ±1.0 pp	3.9%	5.9%
Six-person households	293 ±125	2.8% ±1.2 pp	1.2%	2.2%
Seven or more people	186 ±108 · low precision	1.8% ±1.0 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: 24,602
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Native	23,479 ±270	95.4% ±1.1 pp	95.9%	85.9%
Foreign born	1,123 ±266	4.6% ±1.1 pp	4.1%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 23,497
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
English only	21,301 ±443	90.7% ±1.6 pp	94.0%	77.7%
Spanish	490 ±185	2.1% ±0.8 pp	1.0%	13.6%
French, Haitian, or Cajun	1,173 ±323	5.0% ±1.4 pp	2.3%	0.7%
German or other West Germanic	44 ±47 · low precision	0.2% ±0.2 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	94 ±96 · low precision	0.4% ±0.4 pp · low precision	0.3%	0.7%
Other Indo-European	90 ±57 · low precision	0.4% ±0.2 pp · low precision	0.6%	2.0%
Korean	19 ±36 · low precision	0.1% ±0.2 pp · low precision	0.0%	0.3%
Chinese, including Mandarin and Cantonese	75 ±69 · low precision	0.3% ±0.3 pp · low precision	0.2%	1.1%
Vietnamese	9 ±20 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	65 ±65 · low precision	0.3% ±0.3 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	0 ±20 · low precision	0.0% ±0.1 pp · low precision	0.2%	1.1%
Arabic	39 ±58 · low precision	0.2% ±0.2 pp · low precision	0.1%	0.5%
Other and unspecified	98 ±106 · 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: 16,862
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Less than high school graduate	1,202 ±284	7.1% ±1.7 pp	5.2%	10.4%
High school graduate or equivalency	5,754 ±609	34.1% ±3.4 pp	30.1%	26.0%
Some college, no degree	3,357 ±412	19.9% ±2.3 pp	18.1%	19.1%
Associate’s degree	1,853 ±249	11.0% ±1.4 pp	10.4%	8.8%
Bachelor’s degree	3,207 ±419	19.0% ±2.4 pp	22.5%	21.6%
Graduate or professional degree	1,489 ±275	8.8% ±1.6 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: 24,335
Category	Count ± MOE	Share ± MOE (pp)	Maine	U.S.
Same house	20,599 ±754	84.6% ±3.0 pp	89.4%	87.7%
Moved within same county	2,340 ±618	9.6% ±2.5 pp	5.1%	6.3%
Moved from a different county in the same state	1,007 ±328	4.1% ±1.3 pp	2.4%	3.1%
Moved from a different state	334 ±178 · low precision	1.4% ±0.7 pp · low precision	2.7%	2.3%
Moved from abroad	55 ±98 · low precision	0.2% ±0.4 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

7.0% of Auburn residents (±1.6 percentage points) had no health insurance coverage when surveyed, compared with 6.2% in Maine and 8.4% nationally. 89.5% 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	Auburn	Maine	U.S.	Compared with Maine
People without health insurance Civilian noninstitutionalized population	7.0% ±1.6 pp	6.2%	8.4%	Not statistically different
Households with a broadband subscription Households	89.5% ±1.1 pp	90.3%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	7.7% ±1.2 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 Auburn . 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 Auburn housing and cost context or return to the city profile.