Daylight through the yearLongest day (Jun 21): 14 h 51 min5:37 am – 8:28 pmShortest day (Dec 21): 9 h 29 min7:15 am – 4:44 pm
Sun todaySunrise –Sunset –
People34,478 residentsin the ZIP code areaMedian age 40.313,885 householdsMedian household income $79,784Median home value $224,300Median rent $1,088 a month79% of homes owner-occupiedMedian property tax $1,827 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting2.9% unemployment rate66% of adults are in the labour force, 18,038 employedMain industries: education and health care 20%, retail 14%, manufacturing 11%Average commute 29 minutes82% drive alone, 8% car-pool, 10% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages24% of adults have a bachelor's degree or higher91% finished high school, 7% hold a graduate degreeLanguages at home: English only 93%, Russian or other Slavic 3%3% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month July: highs 88°F, lows 67°FColdest month January: highs 41°F, lows 22°F44 in of rain a year, on about 74 dayswettest month April9 in of snow a year, on about 6 days38 days above 90°F, 105 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Festus station, 14 mi away
Nearby landmarksJefferson College Arnoldcollege · under a mileLake Glen Roselake · 3.4 miButler Lakesreservoir · 2.5 miMeramec Riverriver · 3.8 miFour Ridge Lakelake · 4.3 miChesley Islandisland · 3.9 miSource: USGS Geographic Names Information System
Parks and public landsFerd Lang Parkpark · under a mileArnold Recreation Centerrecreation area · under a mileMastodon State Historic Sitestate historic site · 3.1 mi · 422 acresJefferson Barracks National Cemeteryhistoric site · 6.9 mi · 338 acresUlysses S. Grant National Historic Sitehistoric site · 8.6 miCastlewood State Parkstate park · 10.7 mi · 1,218 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes11 of magnitude 3 or more within 50 miles since 19702 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.2 on 11 Dec 197643 mi away, near Sullivan, MissouriMost recent: magnitude 3.9 on 7 Jun 201137 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively ModerateJefferson County, MO, compared with all US countiesHigher-risk hazardsStrong wind Very HighTornado Relatively HighLightning Relatively HighSource: FEMA National Risk Index (county level)
Air quality73% of days had good air in 2025268 of 365 days measured93 moderate, 4 unhealthy for sensitive groups daysMedian index 42, worst day 150main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Jefferson County monitors, MO
Internet at home92% of households have a broadband subscription79% have cable, fibre or DSL10% rely on a mobile data plan alone7% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterJefferson County Pwsd 1serves 21,113 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation464 ft141 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalBarnes Jewish South Campus Medical Center4.1 miPost officeArnold Post Office1.0 miTown hallArnold City Hall1.0 miPoliceArnold Police Department1.0 miFire stationRock Community Fire Protection District House 1under a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi10 schools6 elementary, 1 middle, 1 high, 2 otherSchoolHoly Child Schoolunder a mileElementarySherwood Elementary Schoolunder a mileElementarySaint John's Lutheran School1.3 miCollegeJefferson College Arnoldunder a mileSource: USGS National Structures Dataset
Getting aroundAirportSt. Louis Lambert International Airport STL22 miInterstateI-551.2 miUS highwayUS 61under a mileAmtrakKirkwood, MO KWD10 miRailSHREWSBURY-LANSDOWNE I-44 METROLINK STATIONMetro St. Louis12 miCoachRichmond Heights, MO (Richmond Heights Metrolink station bus stop loop)OurBus14 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 63010 ZIP area.
