Postal Codes

98188 ZIP Code

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ZIP code 98188 covers Seattle, Washington, with a population of about 26,769 and a median household income of $76,559.

Population
26,7693,319 per square mile
Median age
36.81.9 points below the US average
Median household income
$76,55919% below the Washington median
Poverty rate
9.2%3.2 points below the US average
Typical home value
$592,101up 15% in five years
Median rent
$1,641about the Washington median
Degree or higher
26.5%8.5 points below the US average
Homeownership
41.6%23.4 points below the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
1,511

Where 98188 is

Seattle, Washington — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population26,769
Median age36.8
Family households51.8%
Born outside the US40.7%
Speaks a language other than English at home48.1%
White (non-Hispanic)27.8%
Black (non-Hispanic)26.4%
Asian (non-Hispanic)14.9%
Hispanic or Latino21.4%
Veterans7.3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$76,559
Income per person$40,624
Poverty rate9.2%
Households on SNAP or cash assistance17.6%

Household income distribution

Under $10k3.4%
$10–15k2.7%
$15–20k2.1%
$20–25k1.7%
$25–30k0.9%
$30–35k3.9%
$35–40k7.2%
$40–45k3.6%
$45–50k5.3%
$50–60k6.5%
$60–75k11.8%
$75–100k14.8%
$100–125k12.4%
$125–150k8.3%
$150–200k8.0%
$200k or more7.6%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed13,440
Mean adjusted gross income$67,085
Returns declaring $200,000 or more3.6%
Returns, under $25k25.1%
Returns, $25k–$50k27.5%
Returns, $50k–$75k19.5%
Returns, $75k–$100k10.6%
Returns, $100k–$200k13.6%
Returns, $200k or more3.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$452,900
Median gross rent$1,641
Rent as a share of household income31.1%
Owner-occupied41.6%
Vacant homes6.8%
Median year built1975

What the homes are

Detached house34.3%
Attached house2.9%
2 to 4 units7.8%
5 to 19 units24%
20 or more units26.4%
Mobile home4.6%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$592,101as of 2026-07
Typical home value, 1 yearup 0%
Typical home value, 5 yearsup 15%
Typical home value, 10 yearsup 99.8%
Typical asking rent$1,927as of 2026-07
Typical asking rent, 1 yearup 4.5%
Typical asking rent, 5 yearsup 27.5%
Typical home value since 2000
200020132026$594,438$174,685

$174,685 in 2000 to $592,101 in 2026.

Typical asking rent
202120232026$1,927$1,512

$1,512 in 2021 to $1,927 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate8.2%
Bachelor's degree or higher26.5%
High school diploma or higher88%
Works from home10.9%
Drives to work alone64.1%
Takes public transport9%
Commutes 45 minutes or more11.2%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity27.5% 5.9 pts below the national average of 33.4%
Diagnosed diabetes9.7% 2.3 pts below the national average of 12%
Currently smokes10.6% 2.6 pts below the national average of 13.2%
High blood pressure30.9% 3.2 pts below the national average of 34.1%
Fair or poor general health18.2% 2.1 pts below the national average of 20.3%
No health insurance (18–64)11% same as the national average of 11.3%
Depression23.1% 1.2 pts above the national average of 21.9%
No leisure-time physical activity19.6% 5.8 pts below the national average of 25.4%
Arthritis20.5% 4.6 pts below the national average of 25.1%
Binge drinking15.5% 0.5 pts below the national average of 16%
Taking blood pressure medication67.8% 6.9 pts below the national average of 74.7%
Cancer (non-skin)5.6% 2.1 pts below the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease4.7% 1.5 pts below the national average of 6.2%
Routine check-up in past year69.7% 7 pts below the national average of 76.7%
Cholesterol screening83.2% 2.7 pts below the national average of 85.9%
Cognitive disability14.4% same as the national average of 14.8%
Colorectal screening61.8% 2.5 pts below the national average of 64.3%
COPD4.6% 2 pts below the national average of 6.6%
Visited a dentist61.5% same as the national average of 61.3%
Any disability26.4% 4.3 pts below the national average of 30.7%
Hearing disability5% 1.7 pts below the national average of 6.7%
High cholesterol34.4% 1.8 pts below the national average of 36.2%
Independent living disability7.2% 1.2 pts below the national average of 8.4%
Mammography use75.8% same as the national average of 75.9%
Poor mental health (14+ days)17.1% same as the national average of 16.8%
Mobility disability10.1% 3.9 pts below the national average of 14%
Poor physical health (14+ days)12.2% 1.3 pts below the national average of 13.5%
Self-care disability3.6% same as the national average of 4%
Sleeps under 7 hours34.8% 1.6 pts below the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost12.3% 0.7 pts below the national average of 13%
Vision disability5% 0.6 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,511
People employed41,559
Annual payroll$2,522,942,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 94.8% of US census tracts
FEMA ratingRelatively Moderate to Very High across the 9 census tracts this ZIP code covers
Expected annual loss96.5 out of 100
Community resilience80.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Earthquake99Very High at its worst in this ZIP code
Volcanic activity93.9Relatively Low at its worst in this ZIP code
Landslide78.1Relatively Low at its worst in this ZIP code
River flooding64Very High at its worst in this ZIP code
Wildfire54.5Very Low at its worst in this ZIP code
Heat wave52.4Relatively Moderate at its worst in this ZIP code
Winter weather43.7Relatively Moderate at its worst in this ZIP code
Ice storm43.6Relatively Moderate at its worst in this ZIP code
Tornado22Very Low at its worst in this ZIP code
Lightning12.7Very Low at its worst in this ZIP code
Coastal flooding6.2Very Low at its worst in this ZIP code
Strong wind1.5Very Low at its worst in this ZIP code
Hail0.7Very Low at its worst in this ZIP code
Compared with Washington and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPWashingtonUnited States
Median household income$76,559$94,952$78,538
Income per person$40,624$51,493$43,289
Poverty rate9.2%9.9%12.4%
Median home value$452,900$519,800$303,400
Median gross rent$1,641$1,682$1,348
Homeownership41.6%63.9%65%
Bachelor's degree or higher26.5%38.8%35%
Unemployment rate8.2%5%5.2%
Works from home10.9%17.7%13.5%
Born outside the US40.7%15.1%13.9%
Median age36.838.238.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSEATTLE TACOMA INTL AP, WA US3.1 km away
Rain in a year39 in
Snow in a year6 in

Average high and low by month

January48°F / 37.7°F5.78 in rain, 1.8 in snow
February50.3°F / 37.7°F3.76 in rain, 2.2 in snow
March54.2°F / 39.9°F4.17 in rain, 0.4 in snow
April59.3°F / 43.3°F3.18 in rain
May66.3°F / 48.7°F1.88 in rain
June71.1°F / 53°F1.45 in rain
July77.4°F / 56.8°F0.6 in rain
August77.6°F / 57.2°F0.97 in rain
September71.6°F / 53.6°F1.61 in rain
October60.5°F / 47°F3.91 in rain
November52.1°F / 40.9°F6.31 in rain, 0.2 in snow
December47°F / 37.1°F5.72 in rain, 1.7 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket45% of this ZIP code's area
Far from a supermarket53% of this ZIP code's area
No vehicle and far from a supermarket37% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

Highline School District50.3% of this ZIP code's land area
Renton School District23.7% of this ZIP code's land area
Tukwila School District23.2% of this ZIP code's land area
Kent School District2.9% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability72more vulnerable than 72% of US census tracts
Socioeconomic status65more vulnerable than 65% of US census tracts
Household characteristics43more vulnerable than 43% of US census tracts
Racial and ethnic minority status77more vulnerable than 77% of US census tracts
Housing type and transport77more vulnerable than 77% of US census tracts
Walkability12.6 out of 20Above average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

98158 Seattle, WA2.6 km away
98148 Seattle, WA3.9 km away
98057 Renton, WA4.7 km away
98168 Seattle, WA5 km away
98055 Renton, WA5.3 km away
98178 Seattle, WA5.6 km away
98166 Seattle, WA6 km away
98198 Seattle, WA6.8 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

King County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area8.07 sq mi
Water area0.31 sq mi
Population density3,319 people per sq mi
Latitude, longitude47.4483, -122.2731

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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