Official Site of The State of New Jersey

Mendham Borough, located in Morris County is characterized by its historic downtown and residential development. The North Branch of the Raritan River and its tributaries form in the north of the Borough while McVickers Brook and tributaries form in the south. The majority of the Borough’s preserved lands are in the southeast with additional preserved lands along the North Branch of the Raritan. 

Mendham Borough's petition was approved by the Highlands Council at its January 2026 public meeting. 

• Final Consistency Review and Recommendations Report (pdf)

Area 3,826 acres/5.98 mi²
Preservation Area 0 acres
Planning Area 3,826 acres
RMP Conformance Status Fully conforming, whole municipality.
Liaison Corey Piasecki
Mendham Borough official website