Local servicesPost officeVivian Post Office1.4 miFire stationVivian Fire Department1.4 miSource: USGS National Structures Dataset
Getting aroundAirportPierre Regional Airport PIR33 miInterstateI-903.7 miUS highwayUS 831.1 miCoachVivianJefferson Lines1.4 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 57576 ZIP area.
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Local Information
Distances in these cards are measured from the centre of the 57576 ZIP area.
Daylight through the yearLongest day (Jun 21): 15 h 29 min5:58 am – 9:27 pmShortest day (Dec 21): 8 h 54 min8:12 am – 5:06 pm
Sun todaySunrise –Sunset –
People205 residentsin the ZIP code areaMedian age 28.364 householdsMedian household income $100,208Median home value $219,60095% of homes owner-occupiedMedian property tax $2,265 a yearSource: US Census Bureau, American Community Survey 2020-2024
Education and languages42% of adults have a bachelor's degree or higher100% finished high school, 0% hold a graduate degreeLanguages at home: English only 100%Source: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month July: highs 86°F, lows 61°FColdest month January: highs 30°F, lows 11°F20 in of rain a year, on about 44 dayswettest month June49 in of snow a year, on about 23 days27 days above 90°F, 159 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Pierre 24 S station, 8 mi away; snow from Murdo
Nearby landmarksEngen Reservoirreservoir · 8.9 miStony Buttepeak · 9.1 miSource: USGS Geographic Names Information System
Parks and public landsFort Pierre National Grasslandnational grassland · 8.4 mi · 115,811 acresFate Damstate conservation land · 13.8 mi · 322 acresState Game Production Areanational conservation area · 36.4 mi · 116 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes4 of magnitude 3 or more within 50 miles since 19701 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.4 on 4 Mar 198349 mi away, near Fort Thompson, South DakotaMost recent: magnitude 3.2 on 5 Aug 202210 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowLyman County, SD, compared with all US countiesHighest-rated hazardsCold wave Relatively ModerateWinter weather Relatively ModerateSource: FEMA National Risk Index (county level)
Air quality93% of days had good air in 2025333 of 358 days measured24 moderate, 1 unhealthy for sensitive groups daysMedian index 18, worst day 112main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Hughes County, SD, 37 mi away
Internet at home100% of households have a broadband subscription95% have cable, fibre or DSL5% rely on a mobile data plan alone0% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterTripp County Water User Districtserves 4,860 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation2,018 ft615 m above sea levelSource: USGS 3D Elevation Program
