Grass Lake schools operating millage narrowly passes Updated May 05, 2021; Facebook Share GRASS LAKE, MI – Grass Lake voters have approved a non-homestead tax to support the school district’s operating fund by just 47 votes. Grass Lake Community Schools voters approved up to 5 mills for 13 years, beginning in 2021, to make the district’s 18-mill non-homestead property tax whole, at the May 4 election. About 52% of voters on Tuesday supported the tax, 448-401, according to unofficial results. Turnout for the springtime election was low. About 14% of Grass Lake’s 5,943 registered voters cast a ballot. The district’s operating millage was the only election on May 4 in Jackson County.