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.

21,347
population
4.05
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
98043 ZIP code map
Cities in ZIP code 98043

Below are the cities the US Postal Service accepts for ZIP code 98043. Using any city not on this list may result in mail delivery delays.

City Status
Mountlake Terrace Acceptable
Mountlake Terrace Preferred
Nearby ZIP codes
98036 Lynnwood (1.3 mi) 98155 Seattle (2.6 mi) 98026 Edmonds (3.1 mi) 98020 Edmonds (3.3 mi) 98037 Lynnwood (3.3 mi) 98028 Kenmore (3.8 mi) 98133 Seattle (4 mi) 98021 Bothell (4.7 mi) 98177 Seattle (4.8 mi) 98125 Seattle (5.3 mi) 98011 Bothell (5.6 mi) 98087 Lynnwood (5.6 mi)
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
Total population by age
Gender
Race & ethnicity
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

21,347
Population
5,271
People per sq mi
38.6
Median age
$96,085
Median household income
$50,367
Per capita income
$560,400
Median home value
$1,830
Median monthly rent
58.1%
Home ownership
7.3%
Poverty rate
4.1%
Unemployment
5,562
Housing units
41.2%
Bachelor's or higher

Age distribution

Male Female
409
Under 5
425
536
5–9
556
642
10–14
665
512
15–19
532
489
20–24
508
1,677
25–34
1,740
1,873
35–44
1,943
1,224
45–54
1,269
670
55–59
695
831
60–64
863
889
65–74
922
463
75–84
480
262
85+
272
← Male
Female →

Age summary

GroupCount%
Under 183,92918.4%
18 and over17,41881.6%
65 and over3,28815.4%
Median age38.6 years

Race & ethnicity

White 60.7%
Asian 10.1%
Two or more races 8.7%
Hispanic or Latino 7.9%
Other race 6.4%
Black or African American 4.4%
American Indian / Alaska Native 1.2%
Native Hawaiian / Pacific Islander 0.6%
GroupCount%
White14,06960.7%
Asian2,34310.1%
Two or more races2,0198.7%
Hispanic or Latino1,8357.9%
Other race1,4816.4%
Black or African American1,0234.4%
American Indian / Alaska Native2811.2%
Native Hawaiian / Pacific Islander1310.6%

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%
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%
Range% of households
Under $10k3.6%
$10k–$15k1.3%
$15k–$25k4.1%
$25k–$35k4.0%
$35k–$50k5.7%
$50k–$75k18.4%
$75k–$100k16.3%
$100k–$150k22.1%
$150k–$200k11.5%
$200k+13.0%
Median income$96,085

Housing

Home values

Under $50k 2.0%
$50k–$100k 0.8%
$150k–$200k 1.0%
$200k–$300k 5.2%
$300k–$500k 30.7%
$500k–$1M 57.2%
$1M+ 3.1%

Housing overview

MetricValue
Median home value$560,400
Median rent / month$1,830
Owner occupied58.1%
Renter occupied41.9%
Vacant4.0%
Single-family detached50.9%
Large apartment buildings15.9%
Mobile homes2.0%
Median rooms5.0
Avg household size (owned)2.52

Year built

Era%
2020 or later1.0%
2010–20197.6%
2000–20092.4%
1990–19998.8%
1980–198913.5%
1970–197917.3%
1960–196924.4%
1950–195921.4%
1940–19492.7%
1939 or earlier0.8%

Bedrooms

Size% of units
No bedroom (studio)1.9%
1 bedroom15.2%
2 bedrooms32.8%
3 bedrooms32.2%
4 bedrooms13.0%
5+ bedrooms4.9%

Vehicles per household

Vehicles% of households
No vehicle4.9%
1 vehicle35.7%
2 vehicles39.9%
3 or more19.5%

Heating fuel

Fuel type%
Utility gas31.3%
Electricity63.7%
Propane / LP gas1.5%
Fuel oil1.0%
Wood1.5%
No fuel used0.6%

Households & families

Household typeCount%
Married-couple family3,92143.9%
Cohabiting couple6797.6%
Male householder, no spouse1,73119.4%
Female householder, no spouse2,59129.0%
Households with children under 182,34826.3%
Households with seniors (65+)2,40527.0%
Average household size2.37

Marital status

StatusMaleFemale
Never married33.8%27.6%
Married49.4%44.5%
Separated2.6%4.2%
Widowed2.5%7.8%
Divorced11.8%15.8%

Education

Less than 9th grade 2.6%
Some HS, no diploma 3.5%
HS graduate 20.1%
Some college, no degree 21.5%
Associate's degree 11.1%
Bachelor's degree 26.8%
Graduate / professional 14.4%
Metric%
HS diploma or higher93.9%
Bachelor's or higher41.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool1653.6%
Kindergarten1192.6%
Elementary school1,98742.9%
High school93520.2%
College / grad school1,42830.8%

Employment

Industry of employment

Professional & management 20.6%
Education & healthcare 20.3%
Retail trade 11.5%
Arts, food & hospitality 10.0%
Construction 9.0%
Manufacturing 6.6%
Finance & real estate 5.5%
Other services 4.4%
Transportation & utilities 4.2%
Public administration 3.1%
Wholesale trade 2.5%
Information 1.6%
Agriculture & mining 0.8%

Occupation

Category%
Management, business & arts47.6%
Service15.0%
Sales & office17.2%
Natural resources & construction10.7%
Production & transportation9.4%

Employment type

Type%
Private sector80.3%
Government12.2%
Self-employed7.4%
Unpaid family workers0.1%

Commute

Method%
Drive alone59.2%
Carpool10.7%
Public transit8.3%
Walk1.7%
Work from home19.0%
Other means1.0%
Avg commute (minutes)30.9

Poverty

All people 7.3%
Under 18 years 6.6%
18 and over 7.5%
Married-couple families 2.6%
Female-led households 6.5%

Income support

Source% of households
Social Security27.7%
Retirement income20.4%
Supplemental Security2.5%
Cash public assistance4.8%
Food stamps / SNAP7.4%

Health indicators

Condition%
Obesity30.4%
High blood pressure25.7%
High cholesterol27.3%
Diabetes7.5%
Heart disease4.3%
Stroke2.2%
Asthma10.7%
Arthritis22.3%
Kidney disease2.2%
Pulmonary disease4.5%
Cancer5.7%
Behavior / access%
Smoking13.0%
Binge drinking16.8%
No physical activity17.9%
Less than 7 hrs sleep33.5%
Depression25.8%
Fair or poor health11.3%
Poor mental health15.1%
Poor physical health8.9%
No health insurance10.5%
Visited doctor (checkup)68.4%
Visited dentist68.5%
Cholesterol screening87.8%
Teeth loss8.9%

Veterans & disability

VeteransCount%
Civilian veterans1,2257.1%
Disability%
Any disability13.2%
Under 183.0%
18–64 years9.7%
65 and over40.7%

Health insurance coverage

Type%
Private insurance74.4%
Public insurance30.6%
No insurance8.7%
Uninsured under 199.2%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only20,51396.1%
Spanish1,6418.0%
Other Indo-European6113.0%
Asian & Pacific Islander2681.3%
Other languages6273.1%

Place of birth & citizenship

OriginCount%
Native born (US)17,43381.7%
Born in same state16,89779.2%
Born in different state9,73445.6%
Foreign born5362.5%
Naturalized citizen3,91418.3%
Not a US citizen2,11153.9%

Ancestry

AncestryCount%
French2,61712.3%
Italian2,45711.5%
Polish1,1945.6%
Arab7023.3%
English2461.2%
AncestryCount%
Dutch1760.8%
German1390.7%
Irish380.2%
Norwegian160.1%

Technology access

Metric% of households
Computer access41.8%
Internet access95.8%

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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