Republican presidential candidate Donald Trump will headline a fundraiser next Thursday in Patchogue, Suffolk Republicans said.

The $100-a-head event, scheduled from 5 to 8 p.m., will be held in the Emporium, a rock music venue. Trump also will attend the New York GOP gala in Manhattan that same night.

The announcement of Trump’s appearance came a day after Suffolk Republican Chairman John Jay LaValle formally endorsed Trump’s presidential bid at a rally in Bethpage. The New York presidential primary is April 19.

Patchogue Mayor Paul Pontieri said he was concerned about the potential for protests because the fundraiser will be held down the street from where Ecuadorean immigrant Marcelo Lucero was murdered in 2008.

“His position on immigration is clear and it’s in conflict with what a lot of people believe,” Pontieri said of Trump, who has called for a wall to be built to secure the United States’ southern border.

Pontieri said security is likely to be provided by the Suffolk County Police Department, but the village will help in any way it can. He said he expects those attending the event may be asked to park elsewhere and be bused in, similar to what was done at Trump’s rally in Bethpage Wednesday night.

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Democratic presidential candidate Hillary Clinton will appear Monday night at Suffolk Democrats’ spring dinner at Villa Lombardi’s in Holbrook. Clinton also will appear that day at a fundraiser hosted by Nassau Democratic Chairman Jacobs in Glen Cove.

Joseph Mondello, Nassau Republican chairman, said Trump on May 11 will attend the Nassau GOP’s $200-a-head Patriot’s reception at Crest Hollow Country Club in Woodbury.