Daylight through the yearLongest day (Jun 21): 14 h 25 min5:40 am – 8:05 pmShortest day (Dec 21): 9 h 53 min6:52 am – 4:46 pm
Sun todaySunrise –Sunset –
People44,502 residentsin the ZIP code areaMedian age 46.015,233 householdsMedian household income $105,565Median home value $915,100Median rent $2,486 a month78% of homes owner-occupiedMedian property tax $6,847 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting5.0% unemployment rate61% of adults are in the labour force, 21,615 employedMain industries: education and health care 23%, professional and business services 14%, retail 10%Average commute 33 minutes72% drive alone, 9% car-pool, 1% take public transport, 17% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages54% of adults have a bachelor's degree or higher92% finished high school, 19% hold a graduate degreeLanguages at home: English only 37%, Chinese 33%, Spanish 10%, Korean 6%31% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 92°F, lows 63°FColdest month December: highs 67°F, lows 42°F14 in of rain a year, on about 21 dayswettest month FebruarySnow is rare71 days above 90°F, 3 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Pomona/fairplex station, 7 mi away
Nearby landmarksGrand Avenue Park Trailheadpark · 2.3 miArnold Reservoirreservoir · 1.6 miHidden Trail / Ridgeview Looptrailhead · 3.0 miLa Sierra Drive Trailheadtrailhead · 3.4 miMount San Antonio Collegecollege · 4.8 miCalifornia State Polytechnic Universitycollege · 4.8 miSource: USGS Geographic Names Information System
Earthquakes1,577 of magnitude 3 or more within 50 miles since 1970204 of magnitude 4+, 18 of magnitude 5+Largest: magnitude 6.7 on 17 Jan 199444 mi away, Northridge, CaliforniaMost recent: magnitude 3.1 on 6 Sep 202624 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very HighLos Angeles County, CA, compared with all US countiesHigher-risk hazardsEarthquake Very HighRiver flooding Very HighWildfire Very HighLightning Very HighSource: FEMA National Risk Index (county level)
Air quality11% of days had good air in 202539 of 365 days measured228 moderate, 66 unhealthy for sensitive groups, 32 unhealthy daysMedian index 74, worst day 201main pollutant: ozoneSource: US EPA Air Quality Index, Los Angeles County monitors, CA
Internet at home96% of households have a broadband subscription79% have cable, fibre or DSL8% rely on a mobile data plan alone2% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterFire Suppression Camp #19serves 125 people from groundwater under influence of surface waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation1,012 ft308 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalAmerican Recovery Center Rehabilitation Hospital5.4 miPost officeDiamond Bar Post Officeunder a mileTown hallDiamond Bar City Hall1.4 miPoliceLos Angeles County Sheriff's Office - Walnut / Diamond Bar Station3.3 miFire stationLos Angeles County Fire Department - Station 1201.2 miSource: USGS National Structures Dataset
SchoolsWithin 2 mi6 schools4 elementary, 1 middle, 1 highElementaryQuail Summit Elementary Schoolunder a mileMiddleChaparral Middle Schoolunder a mileElementaryMaple Hill Elementary School1.1 miCollegeMount San Antonio College4.8 miSource: USGS National Structures Dataset
Getting aroundAirportOntario International Airport ONT13 miInterstateI-105.4 miUS highwayUS 10124 miAmtrakPomona, CA POS6.2 miRailIndustryMetrolink2.5 miCoachPomonaMexicoach5.5 miTransit10 stops within a mileFoothill TransitSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 91765 ZIP area.
