Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Mountlake Terrace, WA Population, Income & Demographics 2026

Showing latest census year. Full demographic history available with a paid plan. View plans →

Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

23,104

Median Agei

38.3

Race & Ethnicityi

White

59.8%13,815

Hispanic/Latino

15.3%3,524

Asian

11.5%2,667

Two or More

8.1%1,875

Black

4.2%970

Other

0.4%94

American Indian/Alaska Native

0.4%91

Native Hawaiian/Pacific Islander

0.3%68

Educational Attainment (Age 25+)i

GED/Alternative

4.6%812

High School Diploma

16.8%2,958

Some College (<1 yr)

6.8%1,199

Some College (1+ yr)

11.9%2,088

Associate's Degree

11.2%1,961

Bachelor's Degree

28.1%4,939

Master's Degree

12.1%2,125

Professional Degree

1.9%336

Doctorate

0.8%148

HS or Higher

94.3%

BA or Higher

43%

Graduate+

14.9%

Housingi

Median Home Valuei

$667,300

Median Renti

$2,004

Tenure

Owner-Occupied

56.9%5,606

Renter-Occupied

43.1%4,249

Total Units

10,210

Homeownership

56.9%

Vacancy Rate

3.5%

Home Values

Under $50K

1.3%75

$50K–$100K

1.2%70

$100K–$150K

0.5%29

$150K–$200K

0.7%42

$200K–$300K

2%112

$300K–$500K

19.2%1,079

$500K–$1M

67.9%3,809

$1M+

7%390

Rent Distribution

Under $500

$750–$1,000

$1,000–$1,250

184

$1,250–$1,500

$1,500–$2,000

1,694

$2,000+

2,112

Year Built

2020 or later

2.7%275

2010–2019

8.3%845

2000–2009

4.7%481

1990–1999

6.3%641

1980–1989

17.6%1,796

1970–1979

14.4%1,470

1960–1969

23%2,352

1950–1959

20.7%2,110

1940–1949

1.9%189

1939 or earlier

0.5%51

Heating Fuel

Electricity

63.6%6,264

Utility Gas

31.9%3,147

Bottled/LP Gas

2%201

Fuel Oil

1%98

Wood

0.9%89

Other

0.4%42

No Fuel

0.1%14

Economyi

Median Household Incomei

$107,687

Mean Household Incomei

$135,606

Per Capita Incomei

$59,528

Poverty Ratei

Unemploymenti

4.2%

Labor Forcei

13,685

Household Income Distribution

Under $10K

4%395

$10K–$15K

0.9%87

$15K–$20K

1.3%130

$20K–$25K

1.4%137

$25K–$30K

0.5%48

$30K–$35K

2.3%229

$35K–$40K

1.2%119

$40K–$45K

2%201

$45K–$50K

1.5%147

$50K–$60K

6.4%627

$60K–$75K

11.2%1,108

$75K–$100K

11.6%1,148

$100K–$125K

15.4%1,517

$125K–$150K

10.3%1,017

$150K–$200K

13.3%1,309

$200K+

16.6%1,636

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Foreign-Born Populationi

Foreign-Borni

4,27418.5%

By Region

Top Countries

Mexico

987

Philippines

399

China

282

Korea

237

Guatemala

199

India

170

United Kingdom

121

Germany

Commute & Transportationi

Workersi

12,936

Avg. Commutei

27.9 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

13,050

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

952(5% of civilian adults)

Health Insurancei

92.9%Insured

7.1%Uninsured