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Washington ZIP Codes
King County
Seattle, WA
98198
98198 ZIP Code — Seattle, WA
King County, Washington
ZIP code 98198 is located in
Seattle ,
Washington ,
within King County .
It covers approximately 7.73 square miles and serves a population of
38,942 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 206/253 .
About ZIP code 98198
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 $475,100. Owner-occupancy sits near the national average at 54%.
The gap between median ($76,062) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 30 minutes is near the national average.
Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.
98198 ZIP code map
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Cities in ZIP code 98198
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
38,942
Population density
5,038 / sq mi
State FIPS
53
County FIPS
033
Geography
Land area
7.73 sq mi
Water area
0.93 sq mi
Latitude
47.3823
Longitude
-122.3107
Timezone
Pacific (PT)
Area code
206/253
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
32.4%
24.4%
31.7%
$50k – $100k
36.0%
25.9%
30.6%
$100k – $200k
26.0%
30.8%
27.1%
Over $200k
5.7%
18.9%
10.6%
Demographics & statistics
$76,062
Median household income
$475,100
Median home value
$1,709
Median monthly rent
29.0%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 8,570 22.0%
18 and over 30,372 78.0%
65 and over 6,039 15.5%
Median age 36.7 years
Race & ethnicity
Black or African American
9.8%
Native Hawaiian / Pacific Islander
1.8%
American Indian / Alaska Native
0.5%
Group Count %
White 19,232 41.9%
Hispanic or Latino 6,974 15.2%
Other race 5,598 12.2%
Asian 4,666 10.2%
Black or African American 4,500 9.8%
Two or more races 3,889 8.5%
Native Hawaiian / Pacific Islander 815 1.8%
American Indian / Alaska Native 242 0.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
32.4%
24.4%
31.7%
$50k – $100k
36.0%
25.9%
30.6%
$100k – $200k
26.0%
30.8%
27.1%
Over $200k
5.7%
18.9%
10.6%
Range % of households
Under $10k 2.6%
$10k–$15k 1.3%
$15k–$25k 6.1%
$25k–$35k 5.7%
$35k–$50k 14.7%
$50k–$75k 18.4%
$75k–$100k 13.0%
$100k–$150k 20.0%
$150k–$200k 9.1%
$200k+ 9.2%
Median income $76,062
Housing
Housing overview
Metric Value
Median home value $475,100
Median rent / month $1,709
Owner occupied 53.7%
Renter occupied 46.3%
Vacant 5.1%
Single-family detached 49.8%
Large apartment buildings 16.6%
Mobile homes 0.9%
Median rooms 5.0
Avg household size (owned) 2.56
Year built
Era %
2020 or later 1.0%
2010–2019 5.7%
2000–2009 9.9%
1990–1999 5.4%
1980–1989 18.1%
1970–1979 18.1%
1960–1969 21.8%
1950–1959 13.7%
1940–1949 3.0%
1939 or earlier 3.3%
Bedrooms
Size % of units
No bedroom (studio) 3.2%
1 bedroom 12.4%
2 bedrooms 36.7%
3 bedrooms 30.2%
4 bedrooms 12.1%
5+ bedrooms 5.4%
Vehicles per household
Vehicles % of households
No vehicle 7.5%
1 vehicle 34.4%
2 vehicles 36.6%
3 or more 21.5%
Heating fuel
Fuel type %
Utility gas 33.8%
Electricity 60.1%
Propane / LP gas 1.3%
Fuel oil 3.7%
Wood 0.2%
No fuel used 0.5%
Households & families
Household type Count %
Married-couple family 6,010 41.1%
Cohabiting couple 1,571 10.8%
Male householder, no spouse 3,022 20.7%
Female householder, no spouse 4,003 27.4%
Households with children under 18 4,528 31.0%
Households with seniors (65+) 4,251 29.1%
Average household size 2.56
Marital status
Status Male Female
Never married 41.8% 34.2%
Married 44.4% 40.0%
Separated 1.8% 2.7%
Widowed 1.5% 8.7%
Divorced 10.6% 14.4%
Education
Some college, no degree
21.5%
Graduate / professional
9.9%
Metric %
HS diploma or higher 86.7%
Bachelor's or higher 29.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 535 6.6%
Kindergarten 442 5.4%
Elementary school 3,638 44.8%
High school 1,732 21.3%
College / grad school 1,769 21.8%
Employment
Industry of employment
Education & healthcare
16.1%
Professional & management
14.1%
Transportation & utilities
13.5%
Arts, food & hospitality
10.0%
Finance & real estate
5.2%
Public administration
2.9%
Agriculture & mining
0.2%
Occupation
Category %
Management, business & arts 34.2%
Service 22.9%
Sales & office 16.6%
Natural resources & construction 11.7%
Production & transportation 14.6%
Employment type
Type %
Private sector 83.8%
Government 10.0%
Self-employed 6.1%
Unpaid family workers 0.1%
Commute
Method %
Drive alone 69.9%
Carpool 10.3%
Public transit 5.8%
Walk 1.0%
Work from home 12.2%
Other means 0.8%
Avg commute (minutes) 30.2
Poverty
Married-couple families
5.8%
Female-led households
16.1%
Income support
Source % of households
Social Security 27.7%
Retirement income 23.7%
Supplemental Security 3.7%
Cash public assistance 4.7%
Food stamps / SNAP 13.2%
Health indicators
Condition %
Obesity 24.7%
High blood pressure 30.2%
High cholesterol 30.8%
Diabetes 8.4%
Heart disease 5.4%
Stroke 2.9%
Asthma 10.1%
Arthritis 21.8%
Kidney disease 2.8%
Pulmonary disease 5.4%
Cancer 6.3%
Behavior / access %
Smoking 13.9%
Binge drinking 17.5%
No physical activity 18.6%
Less than 7 hrs sleep 29.6%
Depression 24.6%
Fair or poor health 14.2%
Poor mental health 14.6%
Poor physical health 10.1%
No health insurance 14.7%
Visited doctor (checkup) 68.8%
Visited dentist 64.7%
Cholesterol screening 87.2%
Teeth loss 10.9%
Veterans & disability
Veterans Count %
Civilian veterans 1,849 6.1%
Disability %
Any disability 14.1%
Under 18 5.7%
18–64 years 10.8%
65 and over 40.6%
Health insurance coverage
Type %
Private insurance 57.7%
Public insurance 43.6%
No insurance 10.1%
Uninsured under 19 3.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 36,406 93.5%
Spanish 6,623 18.2%
Other Indo-European 3,103 8.5%
Asian & Pacific Islander 1,329 3.7%
Other languages 1,344 3.7%
Place of birth & citizenship
Origin Count %
Native born (US) 28,030 72.0%
Born in same state 26,951 69.2%
Born in different state 17,165 44.1%
Foreign born 1,079 2.8%
Naturalized citizen 10,912 28.0%
Not a US citizen 4,319 39.6%
Ancestry
Ancestry Count %
French 2,743 7%
Italian 2,511 6.4%
Polish 1,281 3.3%
Arab 795 2%
Dutch 328 0.8%
Ancestry Count %
English 256 0.7%
German 55 0.1%
Irish 53 0.1%
Norwegian 25 0.1%
Technology access
Metric % of households
Computer access 37.5%
Internet access 96.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 98198
What city is ZIP code 98198 in?
ZIP code 98198 is primarily assigned to Seattle, Washington.
What county is ZIP code 98198 in?
ZIP code 98198 falls within King County, Washington.
What is the typical home value in ZIP code 98198?
The median home value in ZIP code 98198 is $475,100.
What is the population of ZIP code 98198?
ZIP code 98198 has an estimated population of 38,942 residents, with a density of 5,041 people per square mile.
What is the median household income in ZIP code 98198?
The median household income in ZIP code 98198 is $76,062, above the national median of ~$75,000.
What timezone is ZIP code 98198 in?
ZIP code 98198 observes the PST timezone.
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