 Gallagher will serve until the November 2016 general election, when voters will select a replacement to fill the balance of the term of office.Old Tappan is located in the 5th Congressional District and is part of New Jersey's 39th state legislative district.As of March 23, 2011, there were a total of 3,821 registered voters in Old Tappan, of which 749 (19.6% vs. 31.7% countywide) were registered as Democrats, 1,015 (26.6% vs. 21.1%) were registered as Republicans and 2,057 (53.8% vs. 47.1%) were registered as Unaffiliated.