Daylight through the yearLongest day (Jun 21): 15 h 40 min5:38 am – 9:18 pmShortest day (Dec 21): 8 h 43 min8:03 am – 4:46 pm
Sun todaySunrise –Sunset –
People562 residentsin the ZIP code areaMedian age 19.8142 householdsMedian household income $96,500Median home value $192,90087% of homes owner-occupiedMedian property tax $2,051 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting3.8% unemployment rate65% of adults are in the labour force, 202 employedMain industries: finance, insurance and real estate 23%, farming, forestry and mining 15%, manufacturing 14%Average commute 18 minutes80% drive alone, 8% car-pool, 3% walk or cycle, 9% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages7% of adults have a bachelor's degree or higher87% finished high school, 2% hold a graduate degreeLanguages at home: English only 100%Source: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month July: highs 82°F, lows 60°FColdest month January: highs 22°F, lows 3°F25 in of rain a year, on about 50 dayswettest month June51 in of snow a year, on about 22 days12 days above 90°F, 172 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Wilmot station, 7 mi away
Parks and public landsHartford Beachstate park · 3.1 mi · 329 acresSmithstate conservation land · 3.1 mi · 112 acresSpinkstate conservation land · 3.1 mi · 77 acresOsterlohstate conservation land · 3.4 mi · 90 acresHiawatha Fishing Accessstate recreation area · 6.3 miBig Stone Lake State Parkstate park · 8.0 mi · 1,022 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes3 of magnitude 3 or more within 50 miles since 19702 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.6 on 9 Jul 197539 mi away, Near Morris, MinnesotaMost recent: magnitude 3.7 on 20 Oct 199529 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowRoberts County, SD, compared with all US countiesHigher-risk hazardsWinter weather Relatively HighSource: FEMA National Risk Index (county level)
Air quality78% of days had good air in 2025283 of 363 days measured76 moderate, 3 unhealthy for sensitive groups, 1 unhealthy daysMedian index 35, worst day 154main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Codington County, SD, 36 mi away
Internet at home93% of households have a broadband subscription73% have cable, fibre or DSL9% rely on a mobile data plan alone7% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterCoronaserves 69 people from ground water purchasedNo health-based violations since 20215 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the ZIP area
Elevation1,196 ft365 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalMilbank Area Hospital Avera11.7 miPost officeCorona Post Office3.4 miTown hallWilmot City Hall6.8 miFire stationCorona Volunteer Fire Department3.5 miSource: USGS National Structures Dataset
Getting aroundAirportWatertown Regional Airport ATY38 miInterstateI-2914 miUS highwayUS 1210 miCoachSummit CornerJefferson Lines16 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 57227 ZIP area.
