Maple Valley, Washington demographics

Maple Valley, WA demographics: median age 36.7; 50.2% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Maple Valley city, Washington · Incorporated city · GEOID 5343150. The survey estimates a population of 28,287 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Maple Valley is 36.7 years, with a 90% margin of error of 1.2 years. There are 9,394 households (±369). 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	36.7 ±1.2	38.3 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 28,287
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Under 18	8,850 ±663	31.3% ±2.3 pp	21.4%	22.0%
18–34	4,430 ±496	15.7% ±1.8 pp	23.7%	22.8%
35–64	12,302 ±781	43.5% ±2.8 pp	38.3%	38.0%
65 and older	2,705 ±409	9.6% ±1.4 pp	16.6%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 28,287
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Male	14,496 ±507	51.2% ±1.8 pp	50.4%	49.5%
Female	13,791 ±510	48.8% ±1.8 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: 28,287
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
White alone	19,461 ±975	68.8% ±3.4 pp	65.8%	61.0%
Black or African American alone	443 ±273 · low precision	1.6% ±1.0 pp · low precision	4.0%	12.2%
American Indian and Alaska Native alone	91 ±55 · low precision	0.3% ±0.2 pp · low precision	1.2%	0.9%
Asian alone	4,403 ±708	15.6% ±2.5 pp	9.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	90 ±112 · low precision	0.3% ±0.4 pp · low precision	0.7%	0.2%
Some other race alone	477 ±246 · low precision	1.7% ±0.9 pp · low precision	5.8%	7.1%
Two or more races	3,322 ±602	11.7% ±2.1 pp	12.8%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 28,287
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Not Hispanic or Latino	26,859 ±398	95.0% ±1.4 pp	85.6%	80.7%
Hispanic or Latino	1,428 ±395	5.0% ±1.4 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: 9,394
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Married-couple family	6,473 ±330	68.9% ±2.2 pp	49.1%	46.9%
Other family: male householder, no spouse present	366 ±155	3.9% ±1.6 pp	4.8%	5.1%
Other family: female householder, no spouse present	765 ±235	8.1% ±2.5 pp	9.5%	12.2%
Nonfamily: householder living alone	1,320 ±291	14.1% ±3.0 pp	27.7%	28.7%
Nonfamily: householder not living alone	470 ±181	5.0% ±1.9 pp	8.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,394
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Households with people under 18	4,815 ±250	51.3% ±1.7 pp	29.3%	29.5%
Households without people under 18	4,579 ±427	48.7% ±4.1 pp	70.7%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,394
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
One-person nonfamily households	1,320 ±291	14.1% ±3.0 pp	27.7%	28.7%
Two-person households	2,696 ±386	28.7% ±3.9 pp	35.3%	33.8%
Three-person households	1,942 ±272	20.7% ±2.8 pp	15.1%	15.3%
Four-person households	2,144 ±274	22.8% ±2.8 pp	12.7%	12.6%
Five-person households	910 ±210	9.7% ±2.2 pp	5.6%	5.9%
Six-person households	217 ±113 · low precision	2.3% ±1.2 pp · low precision	2.2%	2.2%
Seven or more people	165 ±103 · low precision	1.8% ±1.1 pp · low precision	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: 28,287
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Native	23,676 ±636	83.7% ±2.2 pp	84.6%	85.9%
Foreign born	4,611 ±637	16.3% ±2.3 pp	15.4%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 26,441
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
English only	21,337 ±849	80.7% ±3.0 pp	78.6%	77.7%
Spanish	409 ±194	1.5% ±0.7 pp	9.0%	13.6%
French, Haitian, or Cajun	137 ±88 · low precision	0.5% ±0.3 pp · low precision	0.4%	0.7%
German or other West Germanic	110 ±68 · low precision	0.4% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	883 ±384	3.3% ±1.5 pp	1.5%	0.7%
Other Indo-European	867 ±330	3.3% ±1.2 pp	2.0%	2.0%
Korean	294 ±151 · low precision	1.1% ±0.6 pp · low precision	0.7%	0.3%
Chinese, including Mandarin and Cantonese	498 ±179	1.9% ±0.7 pp	1.9%	1.1%
Vietnamese	72 ±67 · low precision	0.3% ±0.3 pp · low precision	1.0%	0.5%
Tagalog, including Filipino	343 ±203 · low precision	1.3% ±0.8 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	1,238 ±480	4.7% ±1.8 pp	2.1%	1.1%
Arabic	185 ±164 · low precision	0.7% ±0.6 pp · low precision	0.4%	0.5%
Other and unspecified	68 ±78 · low precision	0.3% ±0.3 pp · low precision	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: 17,733
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Less than high school graduate	576 ±200	3.2% ±1.1 pp	7.7%	10.4%
High school graduate or equivalency	3,039 ±510	17.1% ±2.8 pp	21.6%	26.0%
Some college, no degree	3,492 ±446	19.7% ±2.5 pp	21.0%	19.1%
Associate’s degree	1,731 ±324	9.8% ±1.8 pp	10.0%	8.8%
Bachelor’s degree	5,614 ±564	31.7% ±3.0 pp	24.0%	21.6%
Graduate or professional degree	3,281 ±436	18.5% ±2.4 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: 27,982
Category	Count ± MOE	Share ± MOE (pp)	Washington	U.S.
Same house	24,072 ±839	86.0% ±3.0 pp	85.5%	87.7%
Moved within same county	2,533 ±596	9.1% ±2.1 pp	8.0%	6.3%
Moved from a different county in the same state	85 ±77 · low precision	0.3% ±0.3 pp · low precision	2.8%	3.1%
Moved from a different state	555 ±312 · low precision	2.0% ±1.1 pp · low precision	2.9%	2.3%
Moved from abroad	737 ±576 · low precision	2.6% ±2.1 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

2.0% of Maple Valley residents (±0.7 percentage points) had no health insurance coverage when surveyed, compared with 6.3% in Washington and 8.4% nationally. 95.8% 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	Maple Valley	Washington	U.S.	Compared with Washington
People without health insurance Civilian noninstitutionalized population	2.0% ±0.7 pp	6.3%	8.4%	Lower
Households with a broadband subscription Households	95.8% ±1.1 pp	93.6%	91.0%	Higher
Veterans Civilian population age 18 and older	7.9% ±1.8 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 Maple Valley . 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 Maple Valley housing and cost context or return to the city profile.