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Iowa Traffic Volume

Vehicle miles traveled, latest August 2026 (preliminary)

August 2026
3.1 billion
vehicle miles
Change from a year earlier
-0.5%
Last 12 months
34.2 billion
+2.2% from the year before
Rank among states
#32
By vehicle miles traveled

Vehicle miles by month

Millions of miles

Iowa vehicle miles traveled by month, millions
Beta

Monthly travel

Swipe the table sideways to see more columns.

MonthVehicle milesA year earlierChangeStations
August 2026preliminary3.1 billion3.1 billion-0.5%112
July 20263.1 billion3.1 billion+0.9%109
June 20263 billion3 billion+1.5%117
May 20263.1 billion3.2 billion-1.1%117
April 20262.9 billion2.9 billion+0.5%126
March 20262.8 billion2.7 billion+2.1%138
February 20262.4 billion2.2 billion+8.0%143
January 20262.5 billion2.4 billion+0.9%140
December 20252.6 billion2.6 billion+0.4%140
November 20252.8 billion2.8 billion-0.1%125
October 20253.1 billion3 billion+1.2%123
September 20252.9 billion2.8 billion+2.0%123
August 20253.1 billion3 billion+0.1%110
July 20253.1 billion3 billion+1.4%111
June 20252.9 billion2.9 billion0.0%121
May 20253.1 billion3.1 billion+0.4%120
April 20252.9 billion2.8 billion+2.8%41
March 20252.7 billion2.7 billion0.0%131
February 20252.2 billion2.3 billion-7.0%88
January 20252.4 billion2.3 billion+2.7%135
December 20242.6 billion2.6 billion-2.3%129
November 20242.7 billion2.7 billion-0.7%122
October 20243 billion2.9 billion+1.9%118
September 20242.9 billion2.9 billion-0.5%114
August 20243.1 billion3.1 billion+1.1%107
July 20243 billion3 billion+1.0%107
June 20243 billion3 billion-2.2%111
May 20243.1 billion3 billion+0.8%118
April 20242.8 billion2.8 billion+1.4%38
March 20242.6 billion2.6 billion+1.6%127
February 20242.3 billion2.2 billion+4.1%90
January 20242.4 billion2.4 billion0.0%132
December 20232.6 billion2.5 billion+4.1%130
November 20232.7 billion2.6 billion+3.7%125
October 20232.9 billion2.9 billion-0.5%122
September 20232.9 billion2.9 billion-0.2%119

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 Iowa · Bridge conditions in Iowa

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

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