Mendham Township lies in southwestern Morris County around Mendham Borough and the headwaters of the Passaic River. Rolling hills, wooded roads, large residential properties, farms, parks, and preserved land define its low-density character. Routes 24 and 510, along with county roads, connect the township with Morristown, Chester, Bernardsville, Randolph, and Somerset County. Morris County spans north-central New Jersey, combining historic downtowns and suburban employment centers with wooded hills, lakes, farms, reservoirs, and rural western townships. Interstates 80, 287, and 78, together with regional rail lines and major state routes, connect the county with Newark, New York City, and western New Jersey. Its combination of local character and regional access helps distinguish Mendham Township from nearby communities. Neighborhoods, local institutions, business areas, open land, and road connections together shape the township’s physical layout.