Mountlake Terrace is home to 23,104 people in Washington. That puts it in the top 6% of US cities for household income. Home values have more than tripled since 2000, reaching $667,300. There are 5,696 people per square mile. 43% of adults hold a bachelor's degree or higher. Owners hold 57% of the housing stock.
At a glance
Wealthier
median household income $107,687, above the US median
US median: $82,259
Mid-age
median age 38.3
US median: 38.9
More educated
43% hold a bachelor's degree
US average: 36%
Less affordable
home values up 120%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Mountlake Terrace
What changed most since 1990
Median home value (2024 dollars)$254,647 → $667,300(+162%)US over the same years: +67%
White share86.3% → 59.8%(−26.6 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree19.3% → 43.0%(+23.7 pts)US over the same years: +15.3 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)23.4%(223)
US avg: 26.4%
Gulf War (1990s)15.7%(149)
US avg: 24.3%
Vietnam era43.8%(417)
US avg: 33.1%
Korean War4%(38)
US avg: 4.5%
World War II2.3%(22)
US avg: 1%
Share of the 952 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
Mountlake Terrace, decade by decade
Mountlake Terrace 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
19,320
$84,941
$254,647
19.3%
31.0
2000
20,362
$86,051
$302,941
24.4%
51.9
2010
19,909
$77,553
$417,761
28.7%
64.8
2020
21,286
$97,858
$514,753
37.4%
75.9
2024
23,104
$107,687
$667,300
43.0%
74.5
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.
How many people live in Mountlake Terrace, Washington?
Mountlake Terrace, Washington has about 23,104 residents according to the 2024 American Community Survey.
What is the median household income in Mountlake Terrace, Washington?
The typical household in Mountlake Terrace, Washington earns about $107,687 a year. Half of households make more than that, and half make less.
Is Mountlake Terrace, Washington expensive?
In Mountlake Terrace, Washington, the median home is worth about $667,300, and the typical rent is about $2,004 a month.
How educated are people in Mountlake Terrace, Washington?
About 43.0% of adults age 25 and over in Mountlake Terrace, Washington hold a bachelor's degree or higher.
What is the poverty rate in Mountlake Terrace, Washington?
About 7.0% of people in Mountlake Terrace, Washington live below the federal poverty line.
Has Mountlake Terrace, Washington grown since 1990?
Yes, Mountlake Terrace, Washington has grown since 1990. The population has added about 3,784 residents, a change of about 20 percent over that period.
