More than two-thirds of the nine school districts in Butler County have proposed tax increases to cover rising expenses expected next school year.

Seven of districts have either proposed or passed plans to raise taxes, with final budget approvals required by July 1. Districts proposing a tax hike include Butler Area School District, Seneca Valley School District, Mars Area School District, Moniteau School District, Allegheny-Clarion Valley School District, Freeport Area School District and Slippery Rock Area School District.

Knoch School District and Karns City Area School District both kept their tax rate the same for next year.

School districts are funded through property taxes, and homeowners pay based on the assessed value of their home.

The highest millage rate for a school district in Butler County for the 2023-24 fiscal year, which begins July 1, is Freeport, which will have a tax rate of 170.3 mills. That's followed by Seneca Valley, which will have a tax rate of 133 mills.

The lowest rate in Butler County is Allegheny-Clarion Valley, where the tax rate will be 79.9 mills after the hike. Moniteau looks to be the second-lowest with a rate of 93.88 mills.