Local servicesHospitalFloyd County Medical Center8.7 miPost officeCharles City Post Office7.4 miTown hallColwell City Hallunder a milePoliceFloyd County Sheriff's Office7.8 miFire stationColwell Community Volunteer Fire Departmentunder a mileSource: USGS National Structures Dataset
Distances in these cards are measured from the centre of the 50620 ZIP area.
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Local Information
Distances in these cards are measured from the centre of the 50620 ZIP area.
Daylight through the yearLongest day (Jun 21): 15 h 23 min5:30 am – 8:53 pmShortest day (Dec 21): 8 h 59 min7:38 am – 4:38 pm
Sun todaySunrise –Sunset –
People36 residentsin the ZIP code areaMedian age 39.520 householdsMedian home value $102,80090% of homes owner-occupiedMedian property tax $1,500 a yearSource: US Census Bureau, American Community Survey 2020-2024
ClimateWarmest month July: highs 82°F, lows 62°FColdest month January: highs 25°F, lows 9°F38 in of rain a year, on about 67 dayswettest month June38 in of snow a year, on about 27 days9 days above 90°F, 154 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Charles City station, 8 mi away
Parks and public landsColwell Parkpark · 2.5 miWapsi Flats Wildlife Management Areastate conservation land · 3.6 mi · 536 acresRestoration Marsh Wildlife Management Areastate conservation land · 6.5 mi · 119 acresNorth Wapsi Accesspark · 6.1 miElma Wildlife Management Areastate conservation land · 6.6 mi · 154 acresIdlewild Wildlife Management Areastate conservation land · 8.4 mi · 197 acresSource: USGS Protected Areas Database (PAD-US)
EarthquakesNone of magnitude 3 or more within 50 miles since 1970Source: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively LowFloyd County, IA, compared with all US countiesHigher-risk hazardsDrought Relatively HighSource: FEMA National Risk Index (county level)
Air quality53% of days had good air in 2025195 of 365 days measured168 moderate, 1 unhealthy for sensitive groups, 1 unhealthy daysMedian index 49, worst day 158main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Black Hawk County, IA, 49 mi away
Internet at home80% of households have a broadband subscription35% have cable, fibre or DSL30% rely on a mobile data plan alone10% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterCity of Colwellserves 55 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation1,145 ft349 m above sea levelSource: USGS 3D Elevation Program
