Daylight through the yearLongest day (Jun 21): 15 h 57 min5:11 am – 9:08 pmShortest day (Dec 21): 8 h 28 min7:52 am – 4:20 pm
Sun todaySunrise –Sunset –
People6,857 residentsin the ZIP code areaMedian age 38.52,649 householdsMedian household income $142,048Median home value $775,400Median rent $1,657 a month86% of homes owner-occupiedMedian property tax $5,940 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting1.2% unemployment rate73% of adults are in the labour force, 3,814 employedMain industries: professional and business services 19%, education and health care 18%, retail 14%Average commute 37 minutes66% drive alone, 8% car-pool, 24% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages53% of adults have a bachelor's degree or higher97% finished high school, 17% hold a graduate degreeLanguages at home: English only 83%, other Indo-European languages 6%, other Asian or Pacific languages 4%, Spanish 4%6% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 77°F, lows 52°FColdest month December: highs 45°F, lows 32°F60 in of rain a year, on about 129 dayswettest month November18 in of snow a year, on about 8 days5 days above 90°F, 70 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Landsburg station, 5 mi away; snow from Palmer 3 Ese
Nearby landmarksMud Lakelake · under a mileGinder Lakelake · under a mileRavensdale Pitreservoir · 2.1 miPautzky Salmon Pondsreservoir · 2.6 miDiamond Springsspring · 3.2 miCedar River Trailhead - East Endtrailhead · 4.3 miSource: USGS Geographic Names Information System
Parks and public landsGRG - Jellumstate park · 2.2 mi · 351 acresGRG - Black Diamondstate park · 2.3 mi · 333 acresFlaming Geyserstate park · 2.4 mi · 504 acresGinder Creek Sitepark · under a mileJones Lake Open Spacepark · under a mileKanaskat-Palmerstate park · 3.5 mi · 535 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes225 of magnitude 3 or more within 50 miles since 197024 of magnitude 4+, 3 of magnitude 5+Largest: magnitude 6.8 on 28 Feb 200136 mi away, near Longbranch, WashingtonMost recent: magnitude 3.0 on 24 Feb 202636 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 home96% of households have a broadband subscription90% have cable, fibre or DSL4% rely on a mobile data plan alone1% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterBlack Diamond Water Deptserves 6,407 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation854 ft260 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalMulticare Covington Medical Center5.8 miPost officeBlack Diamond Post Officeunder a mileTown hallBlack Diamond City Hall1.0 miPoliceBlack Diamond Police Departmentunder a mileFire stationMountain View Fire and Rescue Station 982.7 miSource: USGS National Structures Dataset
SchoolsWithin 2 mi1 school1 elementaryElementaryBlack Diamond Elementary Schoolunder a mileCollegeGreen River College8.4 miSource: USGS National Structures Dataset
Distances in these cards are measured from the centre of the 98010 ZIP area.
