| ZIP Code | 98040 |
| ZIP Code Name | Mercer Island |
| Primary County | King County |
| ZIP Code Type | Standard |
| Population (2021) | 25,506 |
| Area Code(s) | 206 |
| Current Time | PST |
98040 is a United States ZIP Code located in Mercer Island Washington. Portions of 98040 are also in Seattle and Bellevue and Renton and Medina. 98040 is entirely within King County. 98040 is within Metro Seattle-Tacoma.
98040 can be classified socioeconically as a Upper Middle Class class zipcode in comparison to other zipcodes in Washington based on Median Household Income and Average Adjusted Gross Income. Measuring level of educational attainment the majority of adults in 98040 have at least a Bachelor Degree. The majority race/ethnicity residing in 98040 is White. The majority race/ethnicity attending public schools in 98040 is White. The current unemployment level in 98040 is 3.9%.
| Population | 25,506 |
| Population Growth Rate | 2.98% |
| Population Density | 1,944 People per Square Mile |
| Total Households | 9,335 |
| Percentage High Income Households | 30.7% |
| Median Houshold Income (2021) | $170,000 |
| Average Adjusted Gross Income (2019) | $374,920 |
| Current Unemployment Rate (December 2023) | 3.9% |
| Majority Race/Ethnicty | White - 72.63% |
| Public School Majority Race/Ethnicty | White - 57.56% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 17,418 | 72.54% |
| Black | 231 | 0.96% |
| Hispanic | 825 | 3.44% |
| Asian | 5,492 | 22.87% |
| Native American | 17 | 0.07% |
| Hawaiian/Pac. Islander | 27 | 0.11% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 2,413 | 65.57% |
| Black | 37 | 1.01% |
| Hispanic | 226 | 6.14% |
| Asian | 997 | 27.09% |
| Native American | 2 | 0.05% |
| Hawaiian/Pac. Islander | 5 | 0.14% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 364 | 2.22% |
| Bachelor Degree | 6,607 | 40.22% |
| High School Diploma | 821 | 5% |
| No High School Diploma | 37 | 0.23% |
| GED or Alternate | 148 | 0.9% |
| 1 or More Years of College | 1,691 | 10.29% |
| Associates Degree | 728 | 4.43% |
| Masters Degree | 3,427 | 20.86% |
| Professional Degree | 1,960 | 11.93% |
| Doctorate Degree | 636 | 3.87% |
| Coordinates | 47.56600952,-122.23207855 |
| Adjacent ZIP Codes | |
| Cities/Towns in 98040 | |
| Region | Metro Seattle-Tacoma |
| Metropolitan/Micropolitan Stat Area | Seattle-Tacoma-Bellevue, WA |
| Time Zone | Pacific Standard Time |
| IANA Timezone | America/Los_Angeles |
| Area | 13 Square Miles |
| US Congressional Districts in 98040 | |
| Washington State Senate Districts in 98040 | |
| Washington State House of Representatives Districts in 98040 |
| School Districts in 98040 | |
| Elementary Schools in 98040 | |
| Middle Schools in 98040 | |
| High Schools in 98040 |
| Plant Hardiness Zone | Zone 8b: 15F to 20F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | November 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | March 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Csb - Warm-Summer Mediterranean Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 2f - Central Puget Lowland | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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