Postal Codes

98010 ZIP Code

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ZIP code 98010 covers Black Diamond, Washington, with a population of about 6,351 and a median household income of $148,692.

Population
6,351427 per square mile
Median age
38.6about the US average
Median household income
$148,6921.6× the Washington median
Poverty rate
1.5%10.9 points below the US average
Typical home value
$771,686up 15.7% in five years
Median rent
$2,3041.4× the Washington median
Degree or higher
55.5%20.5 points above the US average
Homeownership
87.6%22.6 points above the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
151

Where 98010 is

Black Diamond, 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

Population6,351
Median age38.6
Family households77.8%
Born outside the US14.2%
Speaks a language other than English at home12.6%
White (non-Hispanic)74.4%
Black (non-Hispanic)0.3%
Asian (non-Hispanic)10.2%
Hispanic or Latino9%
Veterans8.8%
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$148,692
Income per person$69,771
Poverty rate1.5%
Households on SNAP or cash assistance7%

Household income distribution

Under $10k0.0%
$10–15k0.7%
$15–20k0.3%
$20–25k0.7%
$25–30k0.8%
$30–35k1.2%
$35–40k2.6%
$40–45k1.5%
$45–50k0.0%
$50–60k0.6%
$60–75k4.9%
$75–100k8.9%
$100–125k17.5%
$125–150k11.3%
$150–200k15.2%
$200k or more33.9%

Income as declared to the IRS

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

Tax returns filed4,090
Mean adjusted gross income$146,270
Returns declaring $200,000 or more21.3%
Returns, under $25k14.2%
Returns, $25k–$50k12.7%
Returns, $50k–$75k12.0%
Returns, $75k–$100k10.5%
Returns, $100k–$200k29.3%
Returns, $200k or more21.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$793,300
Median gross rent$2,304
Owner-occupied87.6%
Vacant homes4.5%
Median year built1997

What the homes are

Detached house91.3%
Attached house1.8%
2 to 4 units0.4%
20 or more units2.4%
Mobile home4.1%
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$771,686as of 2026-07
Typical home value, 1 yeardown 2.8%
Typical home value, 5 yearsup 15.7%
Typical home value, 10 yearsup 90.1%
Typical asking rent$2,954as of 2026-07
Typical asking rent, 1 yearup 2.7%
Typical home value since 2000
200020132026$793,765$240,584

$240,584 in 2000 to $771,686 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1%
Bachelor's degree or higher55.5%
High school diploma or higher98.2%
Works from home22.2%
Drives to work alone68.7%
Takes public transport0.3%
Commutes 45 minutes or more32.5%
Health

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

Obesity23.5% 9.9 pts below the national average of 33.4%
Diagnosed diabetes6.6% 5.4 pts below the national average of 12%
Currently smokes7% 6.2 pts below the national average of 13.2%
High blood pressure27% 7.1 pts below the national average of 34.1%
Fair or poor general health11.1% 9.2 pts below the national average of 20.3%
No health insurance (18–64)5.2% 6.1 pts below the national average of 11.3%
Depression26.3% 4.4 pts above the national average of 21.9%
No leisure-time physical activity11.6% 13.8 pts below the national average of 25.4%
Arthritis22.2% 2.9 pts below the national average of 25.1%
Binge drinking19.4% 3.4 pts above the national average of 16%
Taking blood pressure medication68.8% 5.9 pts below the national average of 74.7%
Cancer (non-skin)8.4% 0.7 pts above the national average of 7.7%
Current asthma10.5% same as the national average of 10.4%
Coronary heart disease4.2% 2 pts below the national average of 6.2%
Routine check-up in past year70.9% 5.8 pts below the national average of 76.7%
Cholesterol screening87.8% 1.9 pts above the national average of 85.9%
Cognitive disability10.8% 4 pts below the national average of 14.8%
Colorectal screening69.7% 5.4 pts above the national average of 64.3%
COPD3.6% 3 pts below the national average of 6.6%
Visited a dentist74.9% 13.6 pts above the national average of 61.3%
Any disability20.4% 10.3 pts below the national average of 30.7%
Hearing disability4.8% 1.9 pts below the national average of 6.7%
High cholesterol35% 1.2 pts below the national average of 36.2%
Independent living disability4.9% 3.5 pts below the national average of 8.4%
Mammography use78.9% 3 pts above the national average of 75.9%
Poor mental health (14+ days)15% 1.8 pts below the national average of 16.8%
Mobility disability7.1% 6.9 pts below the national average of 14%
Poor physical health (14+ days)10.1% 3.4 pts below the national average of 13.5%
Self-care disability2.2% 1.8 pts below the national average of 4%
Sleeps under 7 hours27.9% 8.5 pts below the national average of 36.4%
Stroke2.3% 1.1 pts below the national average of 3.4%
All natural teeth lost4.6% 8.4 pts below the national average of 13%
Vision disability2.7% 2.9 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments151
People employed1,047
Annual payroll$61,926,000
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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 81.8% of US census tracts
FEMA ratingRelatively Low to Very High across the 2 census tracts this ZIP code covers
Expected annual loss89.8 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.

Avalanche96.6Relatively High at its worst in this ZIP code
Volcanic activity91.3Relatively Low at its worst in this ZIP code
Earthquake88.8Relatively High at its worst in this ZIP code
Landslide88.1Relatively Moderate at its worst in this ZIP code
Wildfire63.9Relatively Low at its worst in this ZIP code
River flooding53.9Relatively Moderate at its worst in this ZIP code
Heat wave42.8Relatively Low at its worst in this ZIP code
Winter weather41.3Relatively Low at its worst in this ZIP code
Ice storm37.4Relatively Low at its worst in this ZIP code
Cold wave21.9Relatively Low at its worst in this ZIP code
Tornado14.3Very Low at its worst in this ZIP code
Lightning8.8Very Low at its worst in this ZIP code
Strong wind1.1Very Low at its worst in this ZIP code
Hail0.9Very 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$148,692$94,952$78,538
Income per person$69,771$51,493$43,289
Poverty rate1.5%9.9%12.4%
Median home value$793,300$519,800$303,400
Median gross rent$2,304$1,682$1,348
Homeownership87.6%63.9%65%
Bachelor's degree or higher55.5%38.8%35%
Unemployment rate1%5%5.2%
Works from home22.2%17.7%13.5%
Born outside the US14.2%15.1%13.9%
Median age38.638.238.7
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 stationLANDSBURG, WA US8 km away
Rain in a year60 in

Average high and low by month

January45.7°F / 33°F7.99 in rain
February48.9°F / 32.8°F5.44 in rain
March53.3°F / 34.7°F6.19 in rain
April58.6°F / 38.5°F5.55 in rain
May65.9°F / 43.9°F3.87 in rain
June70.3°F / 48.2°F3.15 in rain
July77°F / 51.4°F1.29 in rain
August77.3°F / 51.5°F1.64 in rain
September70.6°F / 46.9°F2.83 in rain
October59.5°F / 41.2°F5.76 in rain
November49.9°F / 35.7°F8.51 in rain
December44.5°F / 32.3°F7.46 in rain
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 supermarket29% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
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 3 school districts, so the address decides which one, not the ZIP code.

Enumclaw School District80.3% of this ZIP code's land area
Kent School District13.4% of this ZIP code's land area
Tahoma School District6.2% 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 vulnerability14more vulnerable than 14% of US census tracts
Socioeconomic status3more vulnerable than 3% of US census tracts
Household characteristics42more vulnerable than 42% of US census tracts
Racial and ethnic minority status41more vulnerable than 41% of US census tracts
Housing type and transport30more vulnerable than 30% of US census tracts
Walkability5.8 out of 20Below average
Nearby ZIP codes

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

98022 Enumclaw, WA5.4 km away
98092 Auburn, WA7.4 km away
98093 Federal Way, WA8.2 km away
98038 Maple Valley, WA9 km away
98051 Ravensdale, WA9.5 km away
98042 Kent, WA10.7 km away
98025 Hobart, WA12.5 km away
98002 Auburn, WA15.2 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 area14.87 sq mi
Water area1.05 sq mi
Population density427 people per sq mi
Latitude, longitude47.3114, -122.0053

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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