Voters in one precinct in Ward 12 and a pair of precincts in Ward 16 have had their voting locations change for the preliminary municipal election on Sept. 27.

Those living in Ward 12, Precinct 2, will vote at the Rev. Martin Luther King Jr. Towers on MLK Blvd instead of the Boston Latin Academy at 35 Townsend St.

For voting residents of Ward 16’s Precincts 7 and 10, the new polling location is the Engine 20 Firehouse at 301 Neponset Ave. Their old location was the Pope John Paul II Catholic Academy’s Neponset campus at 237 Neponset Ave., the former St. Ann’s School, which is not available right now due to an ongoing renovation project.

The preliminary election, featuring seven candidates in the District 3 race, will winnow the field to two contenders, who will face off in the Nov. 8 final election.

More information about polling locations and voting status can be found at the Boston Election Department website: cityofboston.gov/elections. The department’s phone number is 617-635-3767.