Local servicesHospitalGundersen Palmer Lutheran Hospital and Clinics11.3 miPost officeOssian Post Office1.3 miTown hallOssian City Hall1.4 miPoliceCalmar Police Department6.7 miFire stationOssian Fire Department1.3 miSource: USGS National Structures Dataset
Daylight through the yearLongest day (Jun 21): 15 h 23 min5:27 am – 8:50 pmShortest day (Dec 21): 8 h 59 min7:35 am – 4:34 pm
Sun todaySunrise –Sunset –
People1,558 residentsin the ZIP code areaMedian age 39.2629 householdsMedian household income $77,250Median home value $173,500Median rent $715 a month81% of homes owner-occupiedMedian property tax $2,313 a yearSource: US Census Bureau, American Community Survey 2019-2023
Work and commuting1.8% unemployment rate76% of adults are in the labour force, 863 employedMain industries: education and health care 26%, manufacturing 16%, construction 12%Average commute 22 minutes83% drive alone, 2% car-pool, 4% walk or cycle, 10% work from homeSource: US Census Bureau, American Community Survey 2019-2023, ZIP area
Education and languages23% of adults have a bachelor's degree or higher90% finished high school, 5% hold a graduate degreeLanguages at home: English only 87%, Spanish 12%7% speak English less than very wellSource: US Census Bureau, American Community Survey 2019-2023, ZIP area
ClimateWarmest month July: highs 83°F, lows 61°FColdest month January: highs 26°F, lows 7°F39 in of rain a year, on about 71 dayswettest month June40 in of snow a year, on about 20 days9 days above 90°F, 162 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Postville station, 10 mi away
Nearby landmarksNortheast Iowa Community College - Calmar Campuscollege · 6.5 miLittle Turkey Riverriver · 6.9 miNorth Fork Yellow Riverriver · 7.5 miWalden Pondlake · 5.5 miLake Meyerlake · 8.4 miSource: USGS Geographic Names Information System
Parks and public landsSilver Springs Parkpark · 1.2 miPostville Trailpark · 7.6 miMontauk State Preservestate conservation land · 9.6 miTrout River Wildlife Management Areastate conservation land · 10.0 mi · 171 acresTrout Run Wildlife Management Areastate conservation land · 10.7 mi · 106 acresUpper Iowa River Wildlife Management Areastate conservation land · 13.2 mi · 131 acresSource: USGS Protected Areas Database (PAD-US)
EarthquakesNone of magnitude 3 or more within 50 miles since 1970Source: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowWinneshiek County, IA, compared with all US countiesHighest-rated hazardsHail Relatively ModerateDrought Relatively ModerateSource: 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, 53 mi away
Internet at home93% of households have a broadband subscription72% have cable, fibre or DSL18% rely on a mobile data plan alone6% have no internet at homeSource: US Census Bureau, American Community Survey 2019-2023
Drinking waterOssian Water Supplyserves 802 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation1,198 ft365 m above sea levelSource: USGS 3D Elevation Program
