Unalaska, Alaska demographics

Unalaska, AK demographics: median age 40.4; 17.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Unalaska city, Alaska · Incorporated city · GEOID 0280770. The survey estimates a population of 4,556 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Unalaska is 40.4 years, with a 90% margin of error of 1.9 years. There are 839 households (±99). 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	40.4 ±1.9	35.8 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 4,556
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Under 18	399 ±40	8.8% ±0.8 pp	24.1%	22.0%
18–34	1,389 ±222	30.5% ±4.7 pp	24.7%	22.8%
35–64	2,534 ±250	55.6% ±5.1 pp	37.4%	38.0%
65 and older	234 ±89	5.1% ±1.9 pp	13.8%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 4,556
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Male	3,181 ±136	69.8% ±1.6 pp	52.5%	49.5%
Female	1,375 ±109	30.2% ±2.1 pp	47.5%	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: 4,556
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
White alone	1,021 ±117	22.4% ±2.4 pp	59.6%	61.0%
Black or African American alone	365 ±194 · low precision	8.0% ±4.2 pp · low precision	3.0%	12.2%
American Indian and Alaska Native alone	103 ±62 · low precision	2.3% ±1.4 pp · low precision	13.5%	0.9%
Asian alone	2,071 ±176	45.5% ±3.5 pp	6.4%	6.0%
Native Hawaiian and Other Pacific Islander alone	87 ±53 · low precision	1.9% ±1.2 pp · low precision	1.6%	0.2%
Some other race alone	378 ±102	8.3% ±2.2 pp	2.3%	7.1%
Two or more races	531 ±162	11.7% ±3.5 pp	13.6%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 4,556
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Not Hispanic or Latino	3,871 ±150	85.0% ±1.2 pp	92.7%	80.7%
Hispanic or Latino	685 ±36	15.0% ±0.6 pp	7.3%	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: 839
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Married-couple family	405 ±61	48.3% ±4.5 pp	48.2%	46.9%
Other family: male householder, no spouse present	46 ±25 · low precision	5.5% ±2.9 pp · low precision	5.7%	5.1%
Other family: female householder, no spouse present	40 ±20	4.8% ±2.3 pp	10.0%	12.2%
Nonfamily: householder living alone	266 ±60	31.7% ±6.1 pp	28.4%	28.7%
Nonfamily: householder not living alone	82 ±38	9.8% ±4.4 pp	7.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 839
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Households with people under 18	268 ±51	31.9% ±4.8 pp	31.6%	29.5%
Households without people under 18	571 ±95	68.1% ±8.0 pp	68.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 839
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
One-person nonfamily households	266 ±60	31.7% ±6.1 pp	28.4%	28.7%
Two-person households	236 ±79	28.1% ±8.8 pp	33.9%	33.8%
Three-person households	137 ±34	16.3% ±3.6 pp	14.3%	15.3%
Four-person households	110 ±34	13.1% ±3.8 pp	12.2%	12.6%
Five-person households	43 ±27 · low precision	5.1% ±3.2 pp · low precision	6.1%	5.9%
Six-person households	9 ±13 · low precision	1.1% ±1.6 pp · low precision	2.8%	2.2%
Seven or more people	38 ±18	4.5% ±2.1 pp	2.3%	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: 4,556
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Native	2,311 ±257	50.7% ±5.3 pp	92.3%	85.9%
Foreign born	2,245 ±214	49.3% ±4.3 pp	7.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 4,466
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
English only	1,410 ±222	31.6% ±4.8 pp	84.9%	77.7%
Spanish	553 ±101	12.4% ±2.2 pp	3.3%	13.6%
French, Haitian, or Cajun	85 ±55 · low precision	1.9% ±1.2 pp · low precision	0.4%	0.7%
German or other West Germanic	6 ±14 · low precision	0.1% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	221 ±126 · low precision	4.9% ±2.8 pp · low precision	0.8%	0.7%
Other Indo-European	29 ±31 · low precision	0.6% ±0.7 pp · low precision	0.5%	2.0%
Korean	18 ±16 · low precision	0.4% ±0.4 pp · low precision	0.5%	0.3%
Chinese, including Mandarin and Cantonese	0 ±10 · low precision	0.0% ±0.2 pp · low precision	0.3%	1.1%
Vietnamese	287 ±160 · low precision	6.4% ±3.6 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	1,333 ±205	29.8% ±4.5 pp	2.5%	0.6%
Other Asian and Pacific Island	275 ±80	6.2% ±1.8 pp	2.2%	1.1%
Arabic	152 ±91 · low precision	3.4% ±2.0 pp · low precision	0.2%	0.5%
Other and unspecified	97 ±79 · low precision	2.2% ±1.8 pp · low precision	3.8%	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: 3,670
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Less than high school graduate	371 ±132	10.1% ±3.6 pp	6.4%	10.4%
High school graduate or equivalency	1,269 ±205	34.6% ±5.4 pp	28.9%	26.0%
Some college, no degree	977 ±182	26.6% ±4.8 pp	24.0%	19.1%
Associate’s degree	396 ±101	10.8% ±2.7 pp	9.1%	8.8%
Bachelor’s degree	524 ±128	14.3% ±3.4 pp	19.8%	21.6%
Graduate or professional degree	133 ±58	3.6% ±1.6 pp	11.8%	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: 4,547
Category	Count ± MOE	Share ± MOE (pp)	Alaska	U.S.
Same house	3,414 ±284	75.1% ±5.6 pp	85.5%	87.7%
Moved within same county	337 ±104	7.4% ±2.3 pp	7.5%	6.3%
Moved from a different county in the same state	129 ±72 · low precision	2.8% ±1.6 pp · low precision	2.4%	3.1%
Moved from a different state	449 ±174	9.9% ±3.8 pp	3.9%	2.3%
Moved from abroad	218 ±107	4.8% ±2.3 pp	0.7%	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

18.9% of Unalaska residents (±4.1 percentage points) had no health insurance coverage when surveyed, compared with 11.0% in Alaska and 8.4% nationally. 87.7% 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	Unalaska	Alaska	U.S.	Compared with Alaska
People without health insurance Civilian noninstitutionalized population	18.9% ±4.1 pp	11.0%	8.4%	Higher
Households with a broadband subscription Households	87.7% ±6.1 pp	91.9%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	4.7% ±1.8 pp	10.7%	6.2%	Lower

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 Unalaska . 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 Unalaska housing and cost context or return to the city profile.