About Irwin
Irwin, ID is a tiny community located in southeastern Idaho, home to 289 residents as of the latest Census estimates.
Officially, Irwin is an incorporated city with its own municipal government. The community covers 2.62 square miles, giving it wide-open spaces and a spread-out, rural feel at roughly 110 residents per square mile.
📰 Irwin News Today
- Lawrence Randolph Fleming Obituary Jan 29, 2026 Wood Funeral Home & Crematory · Feb 3
- Idaho’s plans for celebrating the semiquincentennial Idaho Education News · Jun 15
- Two vehicle crash in Irwin sends Idaho Falls man to hospital Local News 8 · Jul 19
- Monthly Weather Forecast for Irwin, Idaho 83428 The Weather Channel · Dec 28
- Local man riding in bed of pickup truck airlifted to hospital after crash that shut down Highway 26 for hours Idaho State Journal · Jul 19
Live headlines via Google News — updates through the day.
What Makes Irwin Unique
- One of 6 places in the US named Irwin — but the Idaho one has a character all its own.
- Positioned in southeastern Idaho, convenient to the region's corridors and crossings.
- Part of the fabric of Idaho — one of 236 recognized communities statewide.
Why People Love It Here
- Quiet streets and a slower rhythm — the kind of place people move to on purpose.
- Housing dollars stretch further here than in the nearest metro.
- Well connected: 3+ neighboring communities within 19 miles.
🏫 Schools in Irwin
- SWAN VALLEY ELEMENTARY SCHOOL
Public schools, U.S. Dept. of Education (NCES) 2023–24 directory.
⚡ Quick Facts
StateIdaho
TypeCity
Population (2024)289
Rank in state#154 of 198
Land area2.62 sq mi
Density110/sq mi
Coordinates43.4034, -111.2795