Maple Valley is a city of 28,287 people in Washington. Since 2000 the city has more than doubled, up 14,078 people. That is roughly 56% ahead of the Washington median. Home values have more than tripled since 2000, reaching $724,700. The median household earns $152,885, about 86% above the national median. 83% of homes are owner-occupied.
At a glance
Wealthier
median household income $152,885, above the US median
US median: $82,259
Younger
median age 36.7
US median: 38.9
More educated
50% hold a bachelor's degree
US average: 36%
Less affordable
home values up 102%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Maple Valley
What changed most since 1990
Population1,256 → 28,287(+2,152%)US over the same years: +35%
White share96.5% → 67.7%(−28.8 pts)US over the same years: −17.8 pts
Asian share2.5% → 15.4%(+12.9 pts)US over the same years: +3.1 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)30.1%(457)
US avg: 26.4%
Gulf War (1990s)37.4%(568)
US avg: 24.3%
Vietnam era18.9%(287)
US avg: 33.1%
Korean War13.6%(206)
US avg: 4.5%
World War II1.1%(17)
US avg: 1%
Share of the 1,520 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Maple Valley, decade by decade
Maple Valley population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
1,256
$104,816
$388,811
28.8%
8.5
2000
14,209
$122,341
$358,320
31.7%
25.9
2010
22,684
$133,991
$509,973
42.2%
38.8
2020
28,013
$142,664
$547,720
43.3%
59.7
2024
28,287
$152,885
$724,700
50.2%
63.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
