Daylight through the yearLongest day (Jun 21): 15 h 13 min5:46 am – 8:59 pmShortest day (Dec 21): 9 h 9 min7:44 am – 4:53 pm
Sun todaySunrise –Sunset –
People499 residentsin the ZIP code areaMedian age 50.3231 householdsMedian household income $62,750Median home value $91,400Median rent $705 a month87% of homes owner-occupiedMedian property tax $1,256 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting0.4% unemployment rate61% of adults are in the labour force, 245 employedMain industries: education and health care 23%, farming, forestry and mining 15%, manufacturing 15%Average commute 25 minutes84% drive alone, 5% car-pool, 2% walk or cycle, 9% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages30% of adults have a bachelor's degree or higher97% finished high school, 9% 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 64°FColdest month January: highs 31°F, lows 10°F34 in of rain a year, on about 61 dayswettest month June31 in of snow a year, on about 19 days19 days above 90°F, 148 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Harlan station, 12 mi away
Nearby landmarksWest Fork West Nishnabotna Riverriver · 9.8 miSource: USGS Geographic Names Information System
Parks and public landsV&w Petersen Wildlife Management Areastate conservation land · 6.1 mi · 453 acresDinesen Prairie State Preservestate conservation land · 6.4 miRosman Glendale Farm Rec. Areapark · 7.5 mi · 70 acresPrairie Rose State Parkstate park · 11.5 mi · 728 acresGreat Western Parkpark · 9.6 mi · 299 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 LowShelby County, IA, compared with all US countiesHighest-rated hazardsDrought Relatively ModerateHail Relatively ModerateSource: FEMA National Risk Index (county level)
Air quality69% of days had good air in 2025253 of 365 days measured111 moderate, 1 unhealthy for sensitive groups daysMedian index 43, worst day 133main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Montgomery County, IA, 52 mi away
Internet at home91% of households have a broadband subscription78% have cable, fibre or DSL12% rely on a mobile data plan alone9% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterIrwin Municipal Supplyserves 313 people from ground water purchasedNo health-based violations since 20216 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation1,346 ft410 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalManning Regional Healthcare Center10.7 miPost officeIrwin Post Office1.2 miTown hallIrwin City Hall1.2 miFire stationIrwin Volunteer Fire and Rescue1.1 miSource: USGS National Structures Dataset
SchoolsWithin 2 mi1 school1 elementaryElementaryIKM - Irwin Elementary School1.5 miCollegeIowa Western Community College - Shelby County Center12.1 miSource: USGS National Structures Dataset
Getting aroundAirportEppley Airfield OMA49 miInterstateI-8019 miUS highwayUS 598.0 miAmtrakCreston, IA CRN66 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 51446 ZIP area.
