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Idaho Traffic Volume

Vehicle miles traveled, latest August 2026 (preliminary)

August 2026
1.9 billion
vehicle miles
Change from a year earlier
0.0%
Last 12 months
20.8 billion
+1.5% from the year before
Rank among states
#38
By vehicle miles traveled

Vehicle miles by month

Millions of miles

Idaho vehicle miles traveled by month, millions
Beta

Monthly travel

Swipe the table sideways to see more columns.

MonthVehicle milesA year earlierChangeStations
August 2026preliminary1.9 billion1.9 billion0.0%188
July 20262 billion2 billion+0.6%168
June 20261.9 billion1.9 billion+0.9%182
May 20261.9 billion1.9 billion+0.5%30
April 20261.7 billion1.7 billion+1.0%191
March 20261.7 billion1.6 billion+3.1%196
February 20261.4 billion1.4 billion+7.0%190
January 20261.5 billion1.5 billion+2.2%198
December 20251.6 billion1.5 billion+3.8%200
November 20251.6 billion1.5 billion+3.8%204
October 20251.8 billion1.8 billion+1.1%196
September 20251.8 billion1.8 billion+2.5%181
August 20252 billion1.9 billion+1.1%199
July 20252 billion1.9 billion+2.9%181
June 20251.9 billion1.8 billion+2.2%183
May 20251.9 billion1.8 billion+2.2%195
April 20251.7 billion1.7 billion+3.0%192
March 20251.6 billion1.6 billion+3.2%203
February 20251.4 billion1.4 billion-1.9%194
January 20251.5 billion1.4 billion+9.8%194
December 20241.5 billion1.5 billion+3.5%202
November 20241.6 billion1.5 billion+0.5%196
October 20241.8 billion1.7 billion+4.4%193
September 20241.8 billion1.7 billion+1.9%182
August 20241.9 billion1.8 billion+2.5%184
July 20241.9 billion1.8 billion+2.7%174
June 20241.8 billion1.8 billion+0.1%184
May 20241.8 billion1.8 billion+2.3%199
April 20241.7 billion1.6 billion+5.1%184
March 20241.6 billion1.5 billion+3.1%195
February 20241.4 billion1.3 billion+4.3%200
January 20241.4 billion1.4 billion-2.9%199
December 20231.5 billion1.4 billion+5.2%199
November 20231.5 billion1.5 billion+5.7%197
October 20231.7 billion1.7 billion+2.1%200
September 20231.7 billion1.7 billion+1.3%196

Vehicle miles traveled are FHWA estimates built from about 5,000 continuous traffic counting stations that states operate, expanded to all public roads. The latest month is preliminary and is revised in the next month's report; percent changes compare the same month a year earlier. Where a state reported no stations, FHWA estimates its travel from nearby states or the national trend.

Traffic crashes in Idaho · Bridge conditions in Idaho

Source: Federal Highway Administration, Traffic Volume Trends, Table 5 · Last updated 08/01/2026

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