Port Republic is a city on the Mullica River, located in Atlantic County, in the U.S. state of New Jersey. As of the 2020 United States census, the city’s population was 1,101, a fade away of 14 (−1.3%) from the 2010 census attach of 1,115, which in face reflected an buildup of 78 (+7.5%) from the 1,037 counted in the 2000 census.

It is a abstemious town, where alcohol is not acceptable to be sold by law.

In 1774, Evi Smith, Hugh McCullum, and Richard Wescoat applied for a Royal charter to build a dam, sawmill, and gristmill on their home along Nacote Creek. While it has been claimed that Chestnut Neck was decided as in the future as 1637, no evidence to sustain this claim has been presented.

In its upfront days, Port Republic was known as Wrangleboro. During the American Revolutionary War, Port Republic provided refuge to the residents of the to hand community of Chestnut Neck following the British Army, arriving by ship, sacked their town upon October 6, 1778. It had been used as a base by privateers who were capturing goods meant for British forces. Among the refugees was Daniel Mathis, a tavernkeeper who built the Franklin Inn in Port Republic, which is used as a private home today. Some of the British ships were trapped in the creek by the ebb tides. The General Lafayette Chapter of the Daughters of the American Revolution erected a monument upon October 6, 1911, to mark the site of the Battle of Chestnut Neck. A Continental Army soldier at the summit of the 50-foot (15 m) monument faces the river, “guarding the shore” against the on enemy.