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Understand Idaho

Highway statistics

Motor vehicle registrations, licensed drivers, vehicle miles traveled, traffic fatalities, and public road mileage by state, from FHWA's Highway Statistics tables MV-1, DL-1C, VM-2, FI-20 and HM-20, republished as Socrata datasets on datahub.transportation.gov.

Publisher

Organization
Federal Highway Administration
Publisher’s dataset
Highway Statistics series
File or API used
https://datahub.transportation.gov/browse?q=highway%20statistics
Retrieval script
scripts/fetch-fhwa-highway-statistics.py

Coverage

Geography
States, DC
Time coverage
1900-2024
Update frequency
Annual
Published
June 11, 2026
Retrieved
September 9, 2026
License of the records
Public domain. U.S. federal government work.
Rows
117,148 observations, 1900-2024

Measures

MeasureWhat it measuresUnit
Licensed driversTotal licensed drivers, from FHWA Highway Statistics table DL-1C.people
Motor vehicle registrationsRegistered motor vehicles by category (Auto, Bus, Truck, Motorcycle) and, from 2000 on, by private/public ownership, from FHWA Highway Statistics table MV-1.count
Vehicle miles traveledAnnual vehicle miles of travel by rural/urban area and functional road system, from FHWA Highway Statistics table VM-2.miles
Traffic fatalitiesPersons killed in motor vehicle crashes by rural/urban area and functional road system, from FHWA Highway Statistics table FI-20.count
Public road mileagePublic road length by rural/urban area and functional road system, from FHWA Highway Statistics table HM-20.miles

Caveats

  • Vehicle miles traveled (VM-2) is an estimate from each state's own travel monitoring program, not a direct count.
  • Traffic fatalities (FI-20) are Fatality Analysis Reporting System (FARS) counts as FHWA republishes them by functional system.
  • Vehicle registrations (MV-1) count registered vehicles, not owners; one business or agency vehicle counts once regardless of drivers.
  • The licensed-drivers table (DL-1C) starts in 2010 in this republication; earlier years are not available through this source.
  • No source table prints a state total for its category breakdown; a state total here is summed from the categories.
  • Puerto Rico appears in the source tables but is excluded here; it is not in this site's geography list.

Pages built on this dataset

How to cite

Understand Idaho, “Highway Statistics series”, compiled from Federal Highway Administration, Highway Statistics series. Retrieved September 9, 2026. https://understandidaho.com/data/fhwa-highway-statistics/.

Cite Federal Highway Administration directly for the figures themselves.

This page was last updated .