SUMMERVILLE — Residents will now vote for Town Council in “odd year” Novembers. Some will vote for a different council seat.

The U.S. Justice Department has approved the town’s voting change and redistricting plan.

The districts have been redrawn to reflect growth in the 2010 census.

The new district voting lines will not be dramatically different. But the town’s traditional May election has been moved to the standard state and federal election date — the first Tuesday after the first Monday in November.

County and state elections officials have sought the voting-day change to save costs and staff time.

The first council election, for three seats, takes place in 2013.