Ledgewood is in western Morris County, in the western part of Roxbury Township. The CDP is bordered to the north by
Landing, to the northeast by the borough of
Mount Arlington, to the east by
Kenvil, and to the south by
Succasunna. It is bordered to the west by
Flanders and
Budd Lake within
Mount Olive Township. The borough of
Netcong is less than north of the northwest corner of Ledgewood. The unincorporated community of Ledgewood is in the eastern part of the CDP.
Interstate 80 forms the northern border of the Ledgewood CDP, with access from exits 27 (
U.S. Route 206), 28 (
U.S. Route 46), and 30 (
Howard Boulevard). I-80 leads east to
Parsippany and west to the
Delaware Water Gap. US 206 runs through the more sparsely developed western part of Ledgewood, leading north into Netcong and south to
Somerville. US 46 passes through the community of Ledgewood and the northeastern part of the CDP, leading northwest into Netcong and east to
Dover.
New Jersey Route 10 has its western terminus at US 46 in the community of Ledgewood and leads southeast into Succasunna. According to the
U.S. Census Bureau, the Ledgewood CDP has a total area of , of which are land and , or 1.46%, are water. Drakes Brook has its source in Ledgewood and flows southwest to join the South Branch of the
Raritan River in
Washington Township.
The Shops at Ledgewood Commons is a shopping area along
New Jersey Route 10 in the eastern part of Ledgewood. ==Demographics==