Framingham officials will recount election ballots April 24 to determine whether the state’s most populous town officially will become a city.

The recount, which is public, will take place at 9 a.m. at Nevins Hall in the Memorial Building, 150 Concord St.

Residents narrowly approved a ballot question April 4 that changes the government structure from a town to a city. Framingham has just under 70,000 residents.

The vote was 5,690 in favor to 5,582 against the change, a difference of just 108 votes. About 28 percent of the town’s 39,910 registered voters turned out for the annual town election, officials said.

Members of Not This Charter, a group opposed to the ballot question, collected enough signatures to trigger a recount, Assistant Town Clerk Lisa Ferguson said Friday. She has certified at least 10 signatures from each of the town’s 18 precincts.

She said 16 officials — two at each station — will manually count all 11,341 ballots, only for the charter question, which could take up to five hours.

If the results don’t change, an election will be held in November to choose a mayor and 11 city councilors to govern the Commonwealth’s 14th most populous community.

Under the new charter, the City Council will have nine district members serving two-year terms and two at-large members serving four-year terms. The mayor will replace the Board of Selectmen, and the City Council, meeting at least monthly, will replace the representative Town Meeting.

The vote was the third time Framingham voters were asked to change the town’s form of government. Residents overwhelmingly rejected ballot questions calling for a city government in 1978 and 1997.

Jennifer Fenn Lefferts can be reached at jflefferts@yahoo.com.