Township, South River Borough, and Spotswood Borough Somerset County (10) Bound Brook, Bridgewater (part, also in 7th), Hillsborough (part, also in 7th), Franklin Township, Manville, Millstone, Montgomery, North Plainfield, Rocky Hill, and South Bound Brook Union County (1) Plainfield Recent statewide election results List of members representing the district Recent election results 2012 2014 2016 2018 2020 2022 References Congressional Biographical Directory of the United States 1774–present 12 Hunterdon County, New Jersey Mercer County, New Jersey Middlesex County, New Jersey Monmouth County, New Jersey Somerset County, New Jersey Constituencies established in 1913 1913 establishments in New Jersey