Daylight through the yearLongest day (Jun 21): 15 h 59 min5:11 am – 9:10 pmShortest day (Dec 21): 8 h 26 min7:54 am – 4:20 pm
Sun todaySunrise –Sunset –
People25,307 residentsin the ZIP code areaMedian age 46.410,068 householdsMedian household income $219,069Median home value $2,000,000+Median rent $2,502 a month67% of homes owner-occupiedMedian property tax $10,000+ a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting3.0% unemployment rate60% of adults are in the labour force, 12,219 employedMain industries: professional and business services 27%, education and health care 23%, finance, insurance and real estate 12%Average commute 24 minutes52% drive alone, 4% car-pool, 3% take public transport, 2% walk or cycle, 39% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages81% of adults have a bachelor's degree or higher98% finished high school, 45% hold a graduate degreeLanguages at home: English only 74%, Chinese 9%, other Indo-European languages 6%, Korean 2%8% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 77°F, lows 58°FColdest month December: highs 48°F, lows 36°F36 in of rain a year, on about 86 dayswettest month November4 in of snow a year, on about 3 days3 days above 90°F, 30 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Seattle Boeing Fld station, 4 mi away; snow from Seattle Sand Pt Wsfo
Nearby landmarksMercer Islandisland · under a mileAndrews Baybay · 1.4 miBarnabie Pointcape · 1.7 miPleasure Pointcape · 1.8 miBrighton Beachbeach · 1.9 miSouth Seattle College - Newholly Learning Centercollege · 3.3 miSource: USGS Geographic Names Information System
Parks and public landsHomestead Fieldpark · under a mileSe 53Rd Pl Open Spacepark · under a mileKlondike Gold Rush National Historical Parkhistoric site · 5.3 miBridle Trailsstate recreation area · 6.2 mi · 489 acresLake Sammamishstate park · 7.6 mi · 532 acresSquak Mountainstate park · 8.8 mi · 1,592 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes250 of magnitude 3 or more within 50 miles since 197028 of magnitude 4+, 3 of magnitude 5+Largest: magnitude 6.8 on 28 Feb 200137 mi away, near Longbranch, WashingtonMost recent: magnitude 3.0 on 24 Feb 202621 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very HighKing County, WA, compared with all US countiesHigher-risk hazardsEarthquake Very HighRiver flooding Very HighAvalanche Very HighLandslide Relatively HighSource: FEMA National Risk Index (county level)
Air quality67% of days had good air in 2025245 of 365 days measured120 moderate daysMedian index 43, worst day 97main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, King County monitors, WA
Internet at home95% of households have a broadband subscription86% have cable, fibre or DSL6% rely on a mobile data plan alone3% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterCity of Mercer Islandserves 31,057 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation78 ft24 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalSeattle Veteran's Affairs Medical Center3.6 miPost officeMercer Island Post Office1.3 miTown hallMercer Island City Hall1.3 miPoliceMercer Island Police Department1.3 miFire stationEastside Fire and Rescue Station 911.3 miSource: USGS National Structures Dataset
SchoolsWithin 2 mi11 schools5 elementary, 1 middle, 2 high, 3 otherElementaryWest Mercer Elementary Schoolunder a mileElementarySaint Monica Schoolunder a mileSchoolCrest Learning Centerunder a mileCollegeSouth Seattle College - Newholly Learning Center3.3 miSource: USGS National Structures Dataset
Distances in these cards are measured from the centre of the 98040 ZIP area.
