City vs city
Idaho Falls vs Irwin, Idaho
Idaho Falls has about 240.6 times as many people as Irwin. They are about 40 miles apart in a straight line.
The basics
Population
Source: U.S. Census Bureau population estimates (Vintage 2024) · July 1, 2024 estimate
69,523
289
County
Source: U.S. Census Bureau and USGS Geographic Names Information System · Checked Oct 3, 2026
Bonneville County
Bonneville County
Elevation
Source: USGS Geographic Names Information System · Checked Oct 3, 2026
4,700 ft
5,300 ft
Distance to Boise (straight line)
Source: Straight line between the two town centers (USGS and Census coordinates) · Checked Oct 3, 2026
209 mi
248 mi
Price level (U.S. average = 100)
Source: U.S. Bureau of Economic Analysis regional price parities, all items, for the metro area (via FRED) · 2024 data, released Feb 19, 2026
94.4
94.4
Public schools
Source: NCES Common Core of Data, operating public schools · 2024-25 school year
46
1
Outdoors
Trails within 15 miles
Source: Trails listed on Treasure Idaho (OpenStreetMap and public land agencies) · Checked Oct 2, 2026
12
70
Things to do within 15 miles
Source: Things to do listed on Treasure Idaho (OpenStreetMap and USGS) · Checked Oct 2, 2026
13
6
Allergies, in a typical year
Wildfire smoke (days a year over AQI 100)
Source: EPA AirData: annual AQI by county · 2021 to 2025 average
Low, 2
Low, 2
Only figures both towns have are shown. Counts of communities, builders, jobs, businesses and stays are what Treasure Idaho lists today, not every one in town. Allergy ratings are typical, general guidance, not medical advice; each city page shows how its ratings were worked out.