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Washington ZIP Codes
Snohomish County
Mountlake Terrace, WA
98043
98043 ZIP Code — Mountlake Terrace, WA
Snohomish County, Washington
ZIP code 98043 is located in
Mountlake Terrace ,
Washington ,
within Snohomish County .
It covers approximately 4.05 square miles and serves a population of
21,347 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 425 .
About ZIP code 98043
The housing stock consists of a mix of housing types. Most homes were built in the 1960s, giving the area an established character. Median home value is $560,400. Owner-occupancy sits near the national average at 58%.
Median household income is $96,085. The poverty rate of 7% is below the national average.
The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.
98043 ZIP code map
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Cities in ZIP code 98043
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
21,347
Population density
5,271 / sq mi
State FIPS
53
County FIPS
061
Geography
Land area
4.05 sq mi
Water area
0.10 sq mi
Latitude
47.7922
Longitude
-122.3072
Timezone
Pacific (PT)
Area code
425
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.9%
24.8%
31.7%
$50k – $100k
40.4%
31.3%
30.6%
$100k – $200k
29.0%
32.6%
27.1%
Over $200k
6.7%
11.2%
10.6%
Demographics & statistics
$96,085
Median household income
$560,400
Median home value
$1,830
Median monthly rent
41.2%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 3,929 18.4%
18 and over 17,418 81.6%
65 and over 3,288 15.4%
Median age 38.6 years
Race & ethnicity
Black or African American
4.4%
American Indian / Alaska Native
1.2%
Native Hawaiian / Pacific Islander
0.6%
Group Count %
White 14,069 60.7%
Asian 2,343 10.1%
Two or more races 2,019 8.7%
Hispanic or Latino 1,835 7.9%
Other race 1,481 6.4%
Black or African American 1,023 4.4%
American Indian / Alaska Native 281 1.2%
Native Hawaiian / Pacific Islander 131 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
23.9%
24.8%
31.7%
$50k – $100k
40.4%
31.3%
30.6%
$100k – $200k
29.0%
32.6%
27.1%
Over $200k
6.7%
11.2%
10.6%
Range % of households
Under $10k 3.6%
$10k–$15k 1.3%
$15k–$25k 4.1%
$25k–$35k 4.0%
$35k–$50k 5.7%
$50k–$75k 18.4%
$75k–$100k 16.3%
$100k–$150k 22.1%
$150k–$200k 11.5%
$200k+ 13.0%
Median income $96,085
Housing
Housing overview
Metric Value
Median home value $560,400
Median rent / month $1,830
Owner occupied 58.1%
Renter occupied 41.9%
Vacant 4.0%
Single-family detached 50.9%
Large apartment buildings 15.9%
Mobile homes 2.0%
Median rooms 5.0
Avg household size (owned) 2.52
Year built
Era %
2020 or later 1.0%
2010–2019 7.6%
2000–2009 2.4%
1990–1999 8.8%
1980–1989 13.5%
1970–1979 17.3%
1960–1969 24.4%
1950–1959 21.4%
1940–1949 2.7%
1939 or earlier 0.8%
Bedrooms
Size % of units
No bedroom (studio) 1.9%
1 bedroom 15.2%
2 bedrooms 32.8%
3 bedrooms 32.2%
4 bedrooms 13.0%
5+ bedrooms 4.9%
Vehicles per household
Vehicles % of households
No vehicle 4.9%
1 vehicle 35.7%
2 vehicles 39.9%
3 or more 19.5%
Heating fuel
Fuel type %
Utility gas 31.3%
Electricity 63.7%
Propane / LP gas 1.5%
Fuel oil 1.0%
Wood 1.5%
No fuel used 0.6%
Households & families
Household type Count %
Married-couple family 3,921 43.9%
Cohabiting couple 679 7.6%
Male householder, no spouse 1,731 19.4%
Female householder, no spouse 2,591 29.0%
Households with children under 18 2,348 26.3%
Households with seniors (65+) 2,405 27.0%
Average household size 2.37
Marital status
Status Male Female
Never married 33.8% 27.6%
Married 49.4% 44.5%
Separated 2.6% 4.2%
Widowed 2.5% 7.8%
Divorced 11.8% 15.8%
Education
Some college, no degree
21.5%
Graduate / professional
14.4%
Metric %
HS diploma or higher 93.9%
Bachelor's or higher 41.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 165 3.6%
Kindergarten 119 2.6%
Elementary school 1,987 42.9%
High school 935 20.2%
College / grad school 1,428 30.8%
Employment
Industry of employment
Professional & management
20.6%
Education & healthcare
20.3%
Arts, food & hospitality
10.0%
Finance & real estate
5.5%
Transportation & utilities
4.2%
Public administration
3.1%
Agriculture & mining
0.8%
Occupation
Category %
Management, business & arts 47.6%
Service 15.0%
Sales & office 17.2%
Natural resources & construction 10.7%
Production & transportation 9.4%
Employment type
Type %
Private sector 80.3%
Government 12.2%
Self-employed 7.4%
Unpaid family workers 0.1%
Commute
Method %
Drive alone 59.2%
Carpool 10.7%
Public transit 8.3%
Walk 1.7%
Work from home 19.0%
Other means 1.0%
Avg commute (minutes) 30.9
Poverty
Married-couple families
2.6%
Female-led households
6.5%
Income support
Source % of households
Social Security 27.7%
Retirement income 20.4%
Supplemental Security 2.5%
Cash public assistance 4.8%
Food stamps / SNAP 7.4%
Health indicators
Condition %
Obesity 30.4%
High blood pressure 25.7%
High cholesterol 27.3%
Diabetes 7.5%
Heart disease 4.3%
Stroke 2.2%
Asthma 10.7%
Arthritis 22.3%
Kidney disease 2.2%
Pulmonary disease 4.5%
Cancer 5.7%
Behavior / access %
Smoking 13.0%
Binge drinking 16.8%
No physical activity 17.9%
Less than 7 hrs sleep 33.5%
Depression 25.8%
Fair or poor health 11.3%
Poor mental health 15.1%
Poor physical health 8.9%
No health insurance 10.5%
Visited doctor (checkup) 68.4%
Visited dentist 68.5%
Cholesterol screening 87.8%
Teeth loss 8.9%
Veterans & disability
Veterans Count %
Civilian veterans 1,225 7.1%
Disability %
Any disability 13.2%
Under 18 3.0%
18–64 years 9.7%
65 and over 40.7%
Health insurance coverage
Type %
Private insurance 74.4%
Public insurance 30.6%
No insurance 8.7%
Uninsured under 19 9.2%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 20,513 96.1%
Spanish 1,641 8.0%
Other Indo-European 611 3.0%
Asian & Pacific Islander 268 1.3%
Other languages 627 3.1%
Place of birth & citizenship
Origin Count %
Native born (US) 17,433 81.7%
Born in same state 16,897 79.2%
Born in different state 9,734 45.6%
Foreign born 536 2.5%
Naturalized citizen 3,914 18.3%
Not a US citizen 2,111 53.9%
Ancestry
Ancestry Count %
French 2,617 12.3%
Italian 2,457 11.5%
Polish 1,194 5.6%
Arab 702 3.3%
English 246 1.2%
Ancestry Count %
Dutch 176 0.8%
German 139 0.7%
Irish 38 0.2%
Norwegian 16 0.1%
Technology access
Metric % of households
Computer access 41.8%
Internet access 95.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 98043
What city is ZIP code 98043 in?
ZIP code 98043 is primarily assigned to Mountlake Terrace, Washington.
What county is ZIP code 98043 in?
ZIP code 98043 falls within Snohomish County, Washington.
What is the typical home value in ZIP code 98043?
The median home value in ZIP code 98043 is $560,400.
What is the population of ZIP code 98043?
ZIP code 98043 has an estimated population of 21,347 residents, with a density of 5,271 people per square mile.
What is the median household income in ZIP code 98043?
The median household income in ZIP code 98043 is $96,085, above the national median of ~$75,000.
What timezone is ZIP code 98043 in?
ZIP code 98043 observes the PST timezone.
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