Officials attribute the drop to both a 4-year-old program aimed at getting those drivers insured or off the road and a clean-up of the state's driver database.
The Dallas Morning News reports that statistics compiled in June indicate that just 13 percent of motorists, or about 2.6 million Texans, are driving without minimum insurance coverage, a violation of state law. One year ago, the state reported that about 22 percent of all drivers, or 4.2 million people, had no insurance.
A private contractor discovered problems in the insured-uninsured database earlier this year.
Texas drivers pay an estimated $1 billion a year to protect themselves from those who have no coverage.