Mountlake Terrace Flag

Mountlake Terrace

County Seat:
No
Area (mi²):
4.056
State:
Washington

Mountlake Terrace is a city located in Snohomish County, Washington. Mountlake Terrace has a 2026 population of 27,154. Mountlake Terrace is currently growing at a rate of 3.74% annually and its population has increased by 27.57% since the most recent census, which recorded a population of 21,286 in 2020.

The median household income in Mountlake Terrace is $107,687 with a poverty rate of 6.98%. The median age in Mountlake Terrace is 38.3 years: 37.2 years for males, and 39.5 years for females. For every 100 females there are 97.8 males.

27.2K
Total Population
6,695
Density (mi²)
978 3.74%
Growth

Mountlake Terrace Population

Mountlake Terrace Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202627,1549783.74%
202526,1769783.88%
202425,1981,4276%
202323,7718883.88%
202222,8835592.5%
202122,3241,0344.86%
202021,286-64-0.3%
201921,350-48-0.22%
201821,398230.11%
201721,3752321.1%
201621,1432541.22%
201520,8891580.76%
201420,7311450.7%
201320,5864472.22%
201220,1391620.81%
201119,977690.35%
201019,908-1-0.01%
200020,3621,0425.39%
199019,3202,78616.85%
198016,534-66-0.4%
197016,6007,47881.98%
19609,12200%

Median Age

Overall: 38.3 years
Female: 39.5 years
Male: 37.2 years

Mountlake Terrace Adults

There are 19,185 adults, (3,810 of whom are seniors) in Mountlake Terrace.

Sex Ratio

Female: 11,678 (50.5%)
Male: 11,426 (49.5%)

Demographics

The racial composition of Mountlake Terrace includes 61.56% White, 11.54% Asian, 8.33% other race, 4.2% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White14,22261.56%
Two or more races3,02613.1%
Asian2,66711.54%
Other race1,9258.33%
Black or African American9704.2%
Native American2200.95%
Native Hawaiian or Pacific Islander740.32%
Race
Population ↓
Percentage (of total)
Other race1,8317.93%
Two or more races1,1514.98%
White4071.76%
Native American1290.56%
Native Hawaiian or Pacific Islander60.03%
Race
Population ↓
Percentage (of total)
White13,81559.79%
Asian2,66711.54%
Two or more races1,8758.12%
Black or African American9704.2%
Other race940.41%
Native American910.39%
Native Hawaiian or Pacific Islander680.29%

Mountlake Terrace Marital Status

Economics and Income Statistics

Mountlake Terrace 's average per capita income is $66,046. Household income levels show a median of $107,687. The poverty rate stands at 6.98%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$136,962-
Families$127,937$167,479
Households$107,687$135,606
Non Families$73,935$88,448

$66,046

Average Income

$107,687

Median Household Income

6.98%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)