The 27th District encompasses 14 communities in Essex and Morris counties: Caldwell, Chatham Township, East Hanover, Essex Fells, Florham Park, Hanover, Harding, Livingston, Madison, Maplewood, Millburn, Roseland, South Orange and West Orange.
The district swings blue, with 43% of voters registered as Democrats, 20% Republicans, and most of the rest unaffiliated.
Democrats represent this district and all the incumbents are seeking reelection. Sen. Richard Codey, a former governor from Roseland, John McKeon, an attorney from West Orange, and Mila Jasey of South Orange.
On the Republican ticket, Adam Kraemer of West Orange filed for the Senate, and Jonathan Sym and Kevin Ryan are the Assembly candidates.