Local servicesHospitalMilbank Area Hospital Avera15.5 miPost officeMarvin Post Office1.5 miTown hallWilmot City Hall9.9 miFire stationMarvin Fire Department1.5 miSource: USGS National Structures Dataset
Getting aroundAirportWatertown Regional Airport ATY27 miInterstateI-295.9 miUS highwayUS 12under a mileCoachSummit CornerJefferson Lines5.9 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 57251 ZIP area.
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Local Information
Distances in these cards are measured from the centre of the 57251 ZIP area.
Daylight through the yearLongest day (Jun 21): 15 h 39 min5:39 am – 9:19 pmShortest day (Dec 21): 8 h 44 min8:03 am – 4:47 pm
Sun todaySunrise –Sunset –
People228 residentsin the ZIP code areaMedian age 28.533 householdsMedian household income $72,292Median home value $75,00073% of homes owner-occupiedSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting0.0% unemployment rate88% of adults are in the labour force, 162 employedMain industries: hospitality, food and recreation 59%, retail 20%, education and health care 10%Average commute 15 minutes46% drive alone, 3% car-pool, 18% walk or cycle, 34% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages34% of adults have a bachelor's degree or higher97% finished high school, 2% hold a graduate degreeLanguages at home: English only 63%, other Asian or Pacific languages 21%, German or Dutch 16%36% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month July: highs 82°F, lows 58°FColdest month January: highs 21°F, lows 2°F26 in of rain a year, on about 53 dayswettest month July59 in of snow a year, on about 24 days7 days above 90°F, 180 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Summit 1 W station, 7 mi away
Nearby landmarksSummit Lakelake · 3.7 miTwin Lakeslake · 3.5 miSource: USGS Geographic Names Information System
Parks and public landsSummit Lakestate recreation area · 3.0 mi · 720 acresSummitstate conservation land · 4.0 mi · 332 acresMazzeppastate conservation land · 5.3 mi · 395 acresDunnstate conservation land · 5.6 mi · 59 acresAndrisenstate conservation land · 10.5 mi · 391 acresOsterlohstate conservation land · 11.1 mi · 90 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes2 of magnitude 3 or more within 50 miles since 19701 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.1 on 5 Jun 199342 mi away, near Johnson, MinnesotaMost recent: magnitude 3.7 on 20 Oct 199536 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowGrant County, SD, compared with all US countiesHighest-rated hazardsCold wave Relatively ModerateIce storm Relatively ModerateSource: 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, 25 mi away
Internet at home73% of households have a broadband subscription52% have cable, fibre or DSL9% rely on a mobile data plan alone24% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterMarvinserves 19 people from ground waterNo health-based violations since 20211 monitoring or reporting violation since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the ZIP area
Elevation1,711 ft522 m above sea levelSource: USGS 3D Elevation Program
