Auburn, Washington demographics

Auburn, WA demographics: median age 36.0; 25.6% 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, Washington · Incorporated city · GEOID 5303180. The survey estimates a population of 85,676 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Auburn is 36.0 years, with a 90% margin of error of 0.7 years. There are 30,393 households (±659). 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	36.0 ±0.7	38.3 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 85,676
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Under 18	21,345 ±1,233	24.9% ±1.4 pp	21.4%	22.0%
18–34	20,016 ±1,193	23.4% ±1.4 pp	23.7%	22.8%
35–64	33,639 ±1,422	39.3% ±1.7 pp	38.3%	38.0%
65 and older	10,676 ±787	12.5% ±0.9 pp	16.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 85,676
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Male	43,521 ±1,062	50.8% ±1.2 pp	50.4%	49.5%
Female	42,155 ±1,054	49.2% ±1.2 pp	49.6%	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: 85,676
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
White alone	44,334 ±2,109	51.7% ±2.5 pp	65.8%	61.0%
Black or African American alone	5,702 ±1,147	6.7% ±1.3 pp	4.0%	12.2%
American Indian and Alaska Native alone	1,674 ±402	2.0% ±0.5 pp	1.2%	0.9%
Asian alone	10,404 ±1,307	12.1% ±1.5 pp	9.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	2,824 ±748	3.3% ±0.9 pp	0.7%	0.2%
Some other race alone	8,260 ±1,226	9.6% ±1.4 pp	5.8%	7.1%
Two or more races	12,478 ±1,611	14.6% ±1.9 pp	12.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 85,676
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Not Hispanic or Latino	67,892 ±1,828	79.2% ±2.1 pp	85.6%	80.7%
Hispanic or Latino	17,784 ±1,828	20.8% ±2.1 pp	14.4%	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: 30,393
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Married-couple family	14,581 ±724	48.0% ±2.1 pp	49.1%	46.9%
Other family: male householder, no spouse present	2,267 ±465	7.5% ±1.5 pp	4.8%	5.1%
Other family: female householder, no spouse present	4,094 ±476	13.5% ±1.5 pp	9.5%	12.2%
Nonfamily: householder living alone	7,327 ±736	24.1% ±2.4 pp	27.7%	28.7%
Nonfamily: householder not living alone	2,124 ±400	7.0% ±1.3 pp	8.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 30,393
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Households with people under 18	10,564 ±526	34.8% ±1.6 pp	29.3%	29.5%
Households without people under 18	19,829 ±893	65.2% ±2.6 pp	70.7%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 30,393
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
One-person nonfamily households	7,327 ±736	24.1% ±2.4 pp	27.7%	28.7%
Two-person households	9,690 ±822	31.9% ±2.6 pp	35.3%	33.8%
Three-person households	5,139 ±535	16.9% ±1.7 pp	15.1%	15.3%
Four-person households	4,219 ±418	13.9% ±1.3 pp	12.7%	12.6%
Five-person households	2,422 ±386	8.0% ±1.3 pp	5.6%	5.9%
Six-person households	859 ±191	2.8% ±0.6 pp	2.2%	2.2%
Seven or more people	737 ±213	2.4% ±0.7 pp	1.5%	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: 85,676
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Native	64,193 ±1,373	74.9% ±1.6 pp	84.6%	85.9%
Foreign born	21,483 ±1,365	25.1% ±1.6 pp	15.4%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 80,207
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
English only	51,725 ±1,778	64.5% ±2.1 pp	78.6%	77.7%
Spanish	11,689 ±1,520	14.6% ±1.9 pp	9.0%	13.6%
French, Haitian, or Cajun	283 ±210 · low precision	0.4% ±0.3 pp · low precision	0.4%	0.7%
German or other West Germanic	129 ±85 · low precision	0.2% ±0.1 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	4,683 ±1,312	5.8% ±1.6 pp	1.5%	0.7%
Other Indo-European	2,258 ±715	2.8% ±0.9 pp	2.0%	2.0%
Korean	934 ±299	1.2% ±0.4 pp	0.7%	0.3%
Chinese, including Mandarin and Cantonese	547 ±242	0.7% ±0.3 pp	1.9%	1.1%
Vietnamese	1,262 ±484	1.6% ±0.6 pp	1.0%	0.5%
Tagalog, including Filipino	1,510 ±512	1.9% ±0.6 pp	0.9%	0.6%
Other Asian and Pacific Island	2,528 ±646	3.2% ±0.8 pp	2.1%	1.1%
Arabic	1,044 ±748 · low precision	1.3% ±0.9 pp · low precision	0.4%	0.5%
Other and unspecified	1,615 ±658	2.0% ±0.8 pp	1.1%	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: 56,466
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Less than high school graduate	6,565 ±755	11.6% ±1.3 pp	7.7%	10.4%
High school graduate or equivalency	15,691 ±947	27.8% ±1.6 pp	21.6%	26.0%
Some college, no degree	12,449 ±962	22.0% ±1.7 pp	21.0%	19.1%
Associate’s degree	7,285 ±759	12.9% ±1.3 pp	10.0%	8.8%
Bachelor’s degree	9,896 ±739	17.5% ±1.3 pp	24.0%	21.6%
Graduate or professional degree	4,580 ±511	8.1% ±0.9 pp	15.6%	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: 84,717
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Same house	75,070 ±1,488	88.6% ±1.7 pp	85.5%	87.7%
Moved within same county	6,191 ±1,162	7.3% ±1.4 pp	8.0%	6.3%
Moved from a different county in the same state	1,531 ±393	1.8% ±0.5 pp	2.8%	3.1%
Moved from a different state	834 ±324	1.0% ±0.4 pp	2.9%	2.3%
Moved from abroad	1,091 ±550 · low precision	1.3% ±0.6 pp · low precision	0.8%	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

8.4% of Auburn residents (±0.9 percentage points) had no health insurance coverage when surveyed, compared with 6.3% in Washington and 8.4% nationally. 94.5% 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	Washington	U.S.	Compared with Washington
People without health insurance Civilian noninstitutionalized population	8.4% ±0.9 pp	6.3%	8.4%	Higher
Households with a broadband subscription Households	94.5% ±2.9 pp	93.6%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	7.7% ±1.0 pp	7.8%	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.