The second Suffolk Marathon will be held Oct. 30 with a new start and finish line in Patchogue, county officials announced Monday.

County Executive Steve Bellone said the course would give more exposure to South Shore downtowns and ease traffic issues associated with leaving Heckscher State Park during the first race. There will also be a 5k added this year, along with the marathon and half-marathon.

Bellone announced the changes at the Sayville Running Club where he signed up to run the full marathon for the second time.

The proceeds from the race will go to groups serving Suffolk military veterans. A county-appointed committee is currently selecting nonprofits for the $160,000 raised last year.

Last year’s event started and finished at Heckscher State Park, with marathoners turning around in downtown Patchogue. This year’s event will reverse the race course, allowing half-marathoners to go through Patchogue, Blue Point, Bayport and Sayville before turning around.

Patchogue Mayor Paul Pontieri said the marathon would promote downtown, which features a number of bars. “What we have in Patchogue is lots of fluids,” he joked.

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The inaugural marathon attracted 3,500 runners. Mike Polansky, president of the Greater Long Island Running Club, which organized the race, predicted 5,000 runners this year.

“We want this to be the most runner friendly race,” he said.

The race will again be a Boston Marathon qualifier.

Runners can register at suffolkmarathon.com