Augusta is an unincorporated area located within Frankford Township, Sussex County, New Jersey. The New Jersey State Fair and the Sussex County Farm and Horse Show are organized here. Augusta also has the Skylands Park, a 4,300-seat ballpark, hosts the Sussex Skyhawks of the Can-Am League, which debuted starting with the 2006 baseball season.
Augusta lies in the Kittatinny Valley which is part of the Great Appalachian Valley. Paulinskill River, which starts in Newton and flows westerly through Augusta from Lafayette, then draining into the Delaware River to the southwest is one of the premier fishing streams in the state of New Jersey. Each year, thousands of trout are stocked in the Paulinskill River from the New Jersey Division of Fish and Wildlife.