Federal Way, Washington demographics

Federal Way, WA demographics: median age 37.4; 30.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Federal Way city, Washington · Incorporated city · GEOID 5323515. The survey estimates a population of 99,493 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Federal Way is 37.4 years, with a 90% margin of error of 1.0 years. There are 35,717 households (±804). 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	37.4 ±1.0	38.3 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 99,493
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Under 18	22,706 ±1,307	22.8% ±1.3 pp	21.4%	22.0%
18–34	24,039 ±1,400	24.2% ±1.4 pp	23.7%	22.8%
35–64	37,783 ±1,532	38.0% ±1.5 pp	38.3%	38.0%
65 and older	14,965 ±952	15.0% ±1.0 pp	16.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 99,493
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Male	50,960 ±1,264	51.2% ±1.3 pp	50.4%	49.5%
Female	48,533 ±1,271	48.8% ±1.3 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: 99,493
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
White alone	36,742 ±2,076	36.9% ±2.1 pp	65.8%	61.0%
Black or African American alone	17,962 ±1,978	18.1% ±2.0 pp	4.0%	12.2%
American Indian and Alaska Native alone	864 ±415	0.9% ±0.4 pp	1.2%	0.9%
Asian alone	15,322 ±1,331	15.4% ±1.3 pp	9.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	2,867 ±835	2.9% ±0.8 pp	0.7%	0.2%
Some other race alone	11,134 ±1,592	11.2% ±1.6 pp	5.8%	7.1%
Two or more races	14,602 ±1,611	14.7% ±1.6 pp	12.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 99,493
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Not Hispanic or Latino	79,559 ±2,121	80.0% ±2.1 pp	85.6%	80.7%
Hispanic or Latino	19,934 ±2,120	20.0% ±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: 35,717
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Married-couple family	16,242 ±748	45.5% ±1.8 pp	49.1%	46.9%
Other family: male householder, no spouse present	2,175 ±359	6.1% ±1.0 pp	4.8%	5.1%
Other family: female householder, no spouse present	4,714 ±545	13.2% ±1.5 pp	9.5%	12.2%
Nonfamily: householder living alone	9,464 ±899	26.5% ±2.4 pp	27.7%	28.7%
Nonfamily: householder not living alone	3,122 ±526	8.7% ±1.5 pp	8.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 35,717
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Households with people under 18	10,981 ±640	30.7% ±1.7 pp	29.3%	29.5%
Households without people under 18	24,736 ±1,136	69.3% ±2.8 pp	70.7%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 35,717
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
One-person nonfamily households	9,464 ±899	26.5% ±2.4 pp	27.7%	28.7%
Two-person households	10,840 ±905	30.3% ±2.4 pp	35.3%	33.8%
Three-person households	5,991 ±637	16.8% ±1.7 pp	15.1%	15.3%
Four-person households	5,093 ±495	14.3% ±1.3 pp	12.7%	12.6%
Five-person households	2,070 ±363	5.8% ±1.0 pp	5.6%	5.9%
Six-person households	1,260 ±268	3.5% ±0.7 pp	2.2%	2.2%
Seven or more people	999 ±249	2.8% ±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: 99,493
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Native	67,753 ±1,872	68.1% ±1.9 pp	84.6%	85.9%
Foreign born	31,740 ±1,872	31.9% ±1.9 pp	15.4%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 93,094
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
English only	53,919 ±2,215	57.9% ±2.3 pp	78.6%	77.7%
Spanish	15,104 ±1,960	16.2% ±2.1 pp	9.0%	13.6%
French, Haitian, or Cajun	931 ±342	1.0% ±0.4 pp	0.4%	0.7%
German or other West Germanic	187 ±92	0.2% ±0.1 pp	0.4%	0.5%
Russian, Polish, or other Slavic	2,826 ±990	3.0% ±1.1 pp	1.5%	0.7%
Other Indo-European	2,146 ±643	2.3% ±0.7 pp	2.0%	2.0%
Korean	3,162 ±731	3.4% ±0.8 pp	0.7%	0.3%
Chinese, including Mandarin and Cantonese	1,338 ±444	1.4% ±0.5 pp	1.9%	1.1%
Vietnamese	1,952 ±508	2.1% ±0.5 pp	1.0%	0.5%
Tagalog, including Filipino	2,535 ±559	2.7% ±0.6 pp	0.9%	0.6%
Other Asian and Pacific Island	3,529 ±815	3.8% ±0.9 pp	2.1%	1.1%
Arabic	556 ±330 · low precision	0.6% ±0.4 pp · low precision	0.4%	0.5%
Other and unspecified	4,909 ±1,269	5.3% ±1.4 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: 68,638
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Less than high school graduate	7,533 ±805	11.0% ±1.2 pp	7.7%	10.4%
High school graduate or equivalency	18,331 ±1,540	26.7% ±2.2 pp	21.6%	26.0%
Some college, no degree	15,734 ±980	22.9% ±1.4 pp	21.0%	19.1%
Associate’s degree	5,918 ±599	8.6% ±0.9 pp	10.0%	8.8%
Bachelor’s degree	14,549 ±1,070	21.2% ±1.5 pp	24.0%	21.6%
Graduate or professional degree	6,573 ±777	9.6% ±1.1 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: 98,390
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Same house	84,103 ±1,656	85.5% ±1.7 pp	85.5%	87.7%
Moved within same county	8,806 ±1,470	9.0% ±1.5 pp	8.0%	6.3%
Moved from a different county in the same state	2,156 ±625	2.2% ±0.6 pp	2.8%	3.1%
Moved from a different state	2,363 ±844	2.4% ±0.9 pp	2.9%	2.3%
Moved from abroad	962 ±318	1.0% ±0.3 pp	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

10.2% of Federal Way residents (±1.2 percentage points) had no health insurance coverage when surveyed, compared with 6.3% in Washington and 8.4% nationally. 94.0% 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	Federal Way	Washington	U.S.	Compared with Washington
People without health insurance Civilian noninstitutionalized population	10.2% ±1.2 pp	6.3%	8.4%	Higher
Households with a broadband subscription Households	94.0% ±1.0 pp	93.6%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	6.9% ±0.8 pp	7.8%	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 Federal Way . 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 Federal Way housing and cost context or return to the city profile.