Vehicles
Idaho has about 1.7 million registered vehicles, reflecting heavy reliance on personal vehicles for transportation.
Households without a vehicle
2006–2024Census American Community Survey 1-year estimates, B08201 (2020 not released).
Public Transit
Public transit use in Idaho is minimal, with less than 1% of commuters relying on transit statewide.
Workers commuting by public transit
2006–2024Census American Community Survey 1-year estimates, share of workers 16+, B08301 (2020 not released).
Airports
Boise Airport handles the large majority of Idaho air travel, with regional service in Idaho Falls, Spokane-adjacent north Idaho and Sun Valley.
Passengers boarded at all commercial airports in Idaho
2011–2025FAA Air Carrier Activity Information System, calendar-year commercial-service enplanements.
Passengers boarded at Boise Air Trml/Gowen Field (BOI)
2011–2025FAA calendar-year enplanements.
Traffic
The average Idaho commute is about 20.5 minutes, among the shortest in the country despite rapid growth in the Boise area.
Traffic fatalities
1994–2024NHTSA Fatality Analysis Reporting System (FARS), State Traffic Data.
Fatality rate per 100 million vehicle miles
1994–2024NHTSA Fatality Analysis Reporting System (FARS), State Traffic Data.
| Indicator | Idaho | U.S. |
|---|---|---|
| Average commute (min) | 20.5 | 26.8 |
Commuting Patterns
Idaho commuters average about 21.5 minutes each way, shorter than the national average, with very little public transit use.
Mean travel time to work
2006–2024Census American Community Survey 1-year estimates, aggregate travel time ÷ workers not working at home, B08013/B08012 (2020 not released).
Workers who drive alone
2006–2024Census American Community Survey 1-year estimates, share of workers 16+, B08301 (2020 not released).
Workers who work from home
2006–2024Census American Community Survey 1-year estimates, share of workers 16+, B08301 (2020 not released).
| Indicator | Idaho | U.S. |
|---|---|---|
| Average commute time (minutes) | 21.5 | 26.4 |
Infrastructure
Idaho's transportation network spans about 48,000 miles of public roads, anchored by Boise Airport and four interstate highways.
Bridges in poor condition
2000–2025FHWA National Bridge Inventory, Bridge Condition by Highway System (as of June each year).
Bridges in good condition
2000–2025FHWA National Bridge Inventory, Bridge Condition by Highway System (as of June each year).
Total highway bridges
2000–2025FHWA National Bridge Inventory, Bridge Condition by Highway System (as of June each year).
Vehicle miles traveled
1994–2024FHWA vehicle miles traveled as published with NHTSA FARS (fatalities ÷ fatality rate per 100M VMT).