Postal Codes

98166 ZIP Code

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ZIP code 98166 covers Seattle, Washington, with a population of about 22,001 and a median household income of $112,191.

Population
22,0013,809 per square mile
Median age
43.75 points above the US average
Median household income
$112,1911.2× the Washington median
Poverty rate
8.7%3.7 points below the US average
Typical home value
$832,902up 10.6% in five years
Median rent
$1,739about the Washington median
Degree or higher
45.5%10.5 points above the US average
Homeownership
66.6%1.6 points above the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
738

Where 98166 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

Population22,001
Median age43.7
Family households66.4%
Born outside the US13.2%
Speaks a language other than English at home15.2%
White (non-Hispanic)69.1%
Black (non-Hispanic)1.9%
Asian (non-Hispanic)7.8%
Hispanic or Latino11.6%
Veterans6.1%
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$112,191
Income per person$64,088
Poverty rate8.7%
Households on SNAP or cash assistance11.7%

Household income distribution

Under $10k2.7%
$10–15k4.4%
$15–20k1.2%
$20–25k2.5%
$25–30k2.4%
$30–35k2.8%
$35–40k3.5%
$40–45k1.7%
$45–50k1.7%
$50–60k6.4%
$60–75k6.1%
$75–100k8.7%
$100–125k10.2%
$125–150k6.2%
$150–200k15.2%
$200k or more24.3%

Income as declared to the IRS

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

Tax returns filed11,090
Mean adjusted gross income$131,323
Returns declaring $200,000 or more17.2%
Returns, under $25k17.9%
Returns, $25k–$50k16.6%
Returns, $50k–$75k15.1%
Returns, $75k–$100k10.7%
Returns, $100k–$200k22.5%
Returns, $200k or more17.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$785,700
Median gross rent$1,739
Rent as a share of household income32%
Owner-occupied66.6%
Vacant homes7.1%
Median year built1960

What the homes are

Detached house67.5%
Attached house1.9%
2 to 4 units4.6%
5 to 19 units11.7%
20 or more units14.3%
Mobile home0.1%
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$832,902as of 2026-07
Typical home value, 1 yeardown 1%
Typical home value, 5 yearsup 10.6%
Typical home value, 10 yearsup 82.7%
Typical asking rent$1,869as of 2026-07
Typical asking rent, 1 yearup 6.2%
Typical home value since 2000
200020132026$850,035$246,389

$246,389 in 2000 to $832,902 in 2026.

Typical asking rent
202220242026$1,869$1,639

$1,652 in 2022 to $1,869 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.2%
Bachelor's degree or higher45.5%
High school diploma or higher93%
Works from home23.5%
Drives to work alone58%
Takes public transport4.8%
Commutes 45 minutes or more18.4%
Health

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

Obesity25.6% 7.8 pts below the national average of 33.4%
Diagnosed diabetes9% 3 pts below the national average of 12%
Currently smokes8.9% 4.3 pts below the national average of 13.2%
High blood pressure32.2% 1.9 pts below the national average of 34.1%
Fair or poor general health15.6% 4.7 pts below the national average of 20.3%
No health insurance (18–64)8.7% 2.6 pts below the national average of 11.3%
Depression25.2% 3.3 pts above the national average of 21.9%
No leisure-time physical activity16.2% 9.2 pts below the national average of 25.4%
Arthritis25.5% same as the national average of 25.1%
Binge drinking16.2% same as the national average of 16%
Taking blood pressure medication72.2% 2.5 pts below the national average of 74.7%
Cancer (non-skin)9.2% 1.5 pts above the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease5.7% 0.5 pts below the national average of 6.2%
Routine check-up in past year72.3% 4.4 pts below the national average of 76.7%
Cholesterol screening87% 1.1 pts above the national average of 85.9%
Cognitive disability12.5% 2.3 pts below the national average of 14.8%
Colorectal screening68.4% 4.1 pts above the national average of 64.3%
COPD5% 1.6 pts below the national average of 6.6%
Visited a dentist68.9% 7.6 pts above the national average of 61.3%
Any disability25.7% 5 pts below the national average of 30.7%
Hearing disability6.3% same as the national average of 6.7%
High cholesterol38% 1.8 pts above the national average of 36.2%
Independent living disability6.5% 1.9 pts below the national average of 8.4%
Mammography use77.5% 1.6 pts above the national average of 75.9%
Poor mental health (14+ days)15.4% 1.4 pts below the national average of 16.8%
Mobility disability10.3% 3.7 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 disability3.3% 0.7 pts below the national average of 4%
Sleeps under 7 hours29.7% 6.7 pts below the national average of 36.4%
Stroke3.1% same as the national average of 3.4%
All natural teeth lost8.2% 4.8 pts below the national average of 13%
Vision disability4.2% 1.4 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments738
People employed5,964
Annual payroll$318,126,000
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 78.9% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 6 census tracts this ZIP code covers
Expected annual loss84.6 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.

Earthquake95.9Very High at its worst in this ZIP code
Volcanic activity85.4Relatively Low at its worst in this ZIP code
Landslide81.6Relatively Low at its worst in this ZIP code
Coastal flooding65.7Relatively Moderate at its worst in this ZIP code
Tsunami58.1Relatively Low at its worst in this ZIP code
Wildfire54.2Very Low at its worst in this ZIP code
Heat wave48.1Relatively Moderate at its worst in this ZIP code
Winter weather37Relatively Low at its worst in this ZIP code
River flooding36.9Relatively Moderate at its worst in this ZIP code
Ice storm28.3Relatively Low at its worst in this ZIP code
Tornado18.3Very Low at its worst in this ZIP code
Lightning10.7Very Low at its worst in this ZIP code
Strong wind1Very Low at its worst in this ZIP code
Hail0.4Very 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$112,191$94,952$78,538
Income per person$64,088$51,493$43,289
Poverty rate8.7%9.9%12.4%
Median home value$785,700$519,800$303,400
Median gross rent$1,739$1,682$1,348
Homeownership66.6%63.9%65%
Bachelor's degree or higher45.5%38.8%35%
Unemployment rate5.2%5%5.2%
Works from home23.5%17.7%13.5%
Born outside the US13.2%15.1%13.9%
Median age43.738.238.7
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 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 supermarketNone of this ZIP code
Far from a supermarket30% of this ZIP code's area
No vehicle and far from a supermarket13% 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%.

Highline School District100% 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 vulnerability45more vulnerable than 45% of US census tracts
Socioeconomic status38more vulnerable than 38% of US census tracts
Household characteristics47more vulnerable than 47% of US census tracts
Racial and ethnic minority status44more vulnerable than 44% of US census tracts
Housing type and transport56more vulnerable than 56% of US census tracts
Walkability12.5 out of 20Above average
Nearby ZIP codes

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

98062 Seahurst, WA2.1 km away
98148 Seattle, WA2.3 km away
98158 Seattle, WA3.4 km away
98146 Seattle, WA5.4 km away
98168 Seattle, WA5.7 km away
98188 Seattle, WA6 km away
98198 Seattle, WA7.1 km away
98070 Vashon, WA8.8 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 area5.78 sq mi
Water area1.63 sq mi
Population density3,809 people per sq mi
Latitude, longitude47.4511, -122.3530

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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