ZIP code
98040
Mercer Island, WA
98040 covers Mercer Island in King County, with 25,282 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 98040. Methodology
ZIP code map of 98040
About ZIP code 98040
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 98040. Not ACS. Methodology
People in 98040
Race
- White16,642
- Black or African American287
- American Indian or Alaska Native59
- Asian5,924
- Native Hawaiian and Pacific Islander34
- Other race329
- Two or more races2,473
Hispanic or Latino (any race): 1,175
Age
- Under 102,649
- 10 to 193,942
- 20 to 292,295
- 30 to 392,517
- 40 to 493,614
- 50 to 593,834
- 60 to 693,079
- 70 to 792,122
- 80 and older1,696
Income and housing in 98040
Education
- High school graduate98.1%
- Bachelor's degree78.8%
- Graduate degree40.5%
Places covering 98040
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Mercer Island100.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- King County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 98040
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 23,983 | |
| 2006 | 22,553 | |
| 2007 | 23,097 | |
| 2008 | 23,215 | |
| 2009 | 23,465 | |
| 2010 | 23,881 | |
| 2011 | 22,592 | 24,176 |
| 2012 | 22,922 | 24,330 |
| 2013 | 23,301 | 24,460 |
| 2014 | 23,636 | 24,180 |
| 2015 | 24,120 | 24,650 |
| 2016 | 24,467 | 24,770 |
| 2017 | 24,768 | 25,200 |
| 2018 | 25,492 | 25,090 |
| 2019 | 25,675 | 25,510 |
| 2020 | 25,820 | 24,920 |
| 2021 | 25,506 | 24,910 |
| 2022 | 25,464 | 24,930 |
| 2023 | 25,282 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 98040
12 nearest ZIP centroids (any distance)
- 98118Seattle2.3 miPop 49,560 · Income $109,085
- 98144Seattle3.2 miPop 33,048 · Income $94,051
- 98006Bellevue3.8 miPop 40,770 · Income $197,344
- 98004Bellevue3.9 miPop 39,435 · Income $176,367
- 98108Seattle4.0 miPop 24,430 · Income $90,806
- 98056Renton4.1 miPop 36,872 · Income $108,596
- 98122Seattle4.3 miPop 42,001 · Income $106,479
- 98005Bellevue4.5 miPop 21,929 · Income $158,396
- 98178Seattle4.6 miPop 25,929 · Income $93,786
- 98039Medina4.9 miPop 2,889 · Income $249,688
- 98134Seattle5.1 miPop 779 · Income $66,119
- 98161Seattle5.2 miPop — · Income —
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 98040, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 98040 FAQ
- What city is ZIP code 98040 in?
- 98040 is in Mercer Island, WA.
- What county is 98040 in?
- 98040 is in King County.
- What is the median household income in 98040?
- The median household income in 98040 is $202,359.
- Which ZIP codes are near 98040?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 98040.