The Lake Region School District’s $27.9 million budget was approved Tuesday by voters in Bridgton, Casco, Naples and Sebago.

The total vote was 424-282, with all of the towns voting in favor of the 2013-2014 budget.

The district’s spending plan is up almost 7 percent over the current budget, because of a proposed $357,000 shift in retirement costs from the state to the school district and $500,000 budgeted for bond interest payments that the federal government will reimburse, said Business Manager Sherrie Small.

Small did not know Tuesday how the budget would affect the tax rates of the four towns in the district.

All four towns also voted Tuesday, 454-246, to continue holding referendums on the school budget, a question asked of voters every three years.