Mountlake Terrace, Washington Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Mountlake Terrace, WA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
A
Health Above average
-
B
Income Around average
-
B
Education Around average
Source: Map AI Methodology
Population
| Metric | Mountlake Terrace | Washington Avg | U.S. Average |
|---|---|---|---|
| Population | 23,156 | 7,801,159 | 337,468,954 |
| Population density (per sq mi) | 5565.6 | 109.3 | 86.4 |
| Population growth (%/yr) | 1.74% | 1.21% | 0.59% |
| Median age | 36.3 | 36.2 | 37.3 |
| Households | 9,826 | 3,058,619 | 130,235,071 |
Population in Mountlake Terrace grew by 16.9% from 2009 to 2024, reaching 23,156 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Mountlake Terrace is Millennials, aged 29–44, at 27.0% of residents. That is 3.6 points above Washington as a whole.
- Gen Z 13–28 4,677 20.2% -1.2 pts
- Millennials 29–44 6,244 27.0% +3.6 pts
- Gen X 45–60 4,697 20.3% +0.8 pts
- Boomers 61–79 3,472 15.0% -1.3 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Washington, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.7% of the people living in Mountlake Terrace and men 49.3%.
- Women 50.7% Washington 49.7%
- Men 49.3% Washington 50.3%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Mountlake Terrace
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Mountlake Terrace has a the economy index of B, which means it is quite prosperous.
| Metric | Mountlake Terrace | Washington Avg | U.S. Average |
|---|---|---|---|
| Median household income | $109,079 | $98,224 | $80,455 |
| Income growth (%/yr) | 5.99% | 5.64% | 4.80% |
| Unemployment rate | 4.3% | 5.0% | 5.2% |
The median household income in Mountlake Terrace is about 11% higher than in Washington.
Housing
| Metric | Mountlake Terrace | Washington Avg | U.S. Average |
|---|---|---|---|
| Median home price | $625,000 | $485,016 | $248,835 |
| Median rent | $2,007 | $1,759 | $1,407 |
| Homeownership rate | 56.8% | 63.8% | 65.2% |
The median home price in Mountlake Terrace is about 26.0 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,007 per month for that long.
Commute Time & Mobility
Commuters in Mountlake Terrace spend about 53 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 221 hours, about 9.2 full days, spent commuting.
| Metric | Mountlake Terrace | Washington Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 26.5 | 22.4 | 22.4 |
| Round-trip commute (min) | 53.0 | 44.8 | 44.8 |
| Yearly time spent (hours) | 221 | 187 | 187 |
| Estimated yearly cost | $6,841 | $5,785 | $5,790 |
| Work from home | 21.8% | 19.8% | 15.0% |
| Highway traffic (vehicles/day) | 44,940 | 10,119 | 8,813 |
| Local road traffic (vehicles/day) | 2,967 | 1,525 | 1,355 |
The average commute time in Mountlake Terrace is 26 minutes, longer than the 22 minutes in Washington.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Mountlake Terrace has a education index of B, which means it is quite educated.
| Metric | Mountlake Terrace | Washington Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 39.6% | 35.1% | 31.6% |
| Average household size | 2.34 | 2.50 | 2.53 |
Health
Mountlake Terrace has a health index of A, which means it is very healthy.
| Metric | Mountlake Terrace | Washington Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 82.0 | 79.6 | 78.3 |
| Self-rated poor health | 11.7% | 15.4% | 16.3% |
| Smokers | 13.3% | 16.4% | 19.0% |
Mountlake Terrace, WA Compared With Nearby Cities
How Mountlake Terrace, WA compares with the 1 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Mountlake Terrace, WA | 23,156 | $109,079 #1/2 | $625,000 #2/2 | 26.5 min #1/2 |
| Lynnwood, WA | 41,626 | $81,645 | $884,322 | 27.8 min |
Frequently Asked Questions
Common questions about Mountlake Terrace, Washington.
What is the population of Mountlake Terrace, Washington?
About 23,156 people live in Mountlake Terrace, Washington, in 9,826 households of 2.3 people on average. The median age is 36.3, close to the U.S. median of 37.3.
Is Mountlake Terrace, Washington mostly urban or rural?
Averaged over its land area, Mountlake Terrace, Washington has 5,566 people per square mile, a density typical of a city. That is about 64 times the U.S. average of 86.
Can a typical household afford a home in Mountlake Terrace, Washington?
The median home costs 5.7 times the median household income ($625,000 against $109,079), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,007 a month takes about 22% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Analyze any area in the US
Get local demographics for any address, aggregated by drive time or radius, on the interactive map.
Explore the map →