St. John the Baptist Parish voters on Saturday overwhelmingly backed renewing a 1-mill property tax that pays for maintaining and operating three important parish buildings.

With all 39 precincts reporting, nearly 71 percent of voters — 1,267 in all — voted in favor of renewing the millage, according to preliminary figures from the secretary of state’s office.

The millage will generate about $447,000 annually for 10 years, starting next year. The money will pay for maintaining the Percy Hebert Building, which houses most parish government functions, and the Lt. Sherman Walker Correctional Facility, which are both in LaPlace, and the 40th Judicial District Court building in Edgard.

The millage costs the typical homeowner with a $150,000 home and a homestead exemption about $7.50 per year.

The proposition was backed by the River Region Chamber of Commerce.

Follow Richard Thompson on Twitter @rthompsonMSY.