 Rockleigh is located in the 5th Congressional District and is part of New Jersey's 37th state legislative district.Prior to the 2011 reapportionment following the 2010 Census, Rockleigh had been in the 39th state legislative district.As of March 23, 2011, there were a total of 229 registered voters in Rockleigh, of which 59 (25.8% vs. 31.7% countywide) were registered as Democrats, 70 (30.6% vs. 21.1%) were registered as Republicans and 99 (43.2% vs. 47.1%) were registered as Unaffiliated.