Stonebridge is a gated community and census-designated place (CDP) in Monroe Township, Middlesex County, in the U.S. state of New Jersey.

As of the 2020 census, the year it was first listed as a CDP, the population was 1,616.

[2] Stonebridge is in southern Middlesex County, in the southwestern part of Monroe Township, on the east side of Applegarth Road and the north side of Federal Road.

[1] Cranbury Brook runs along the northeast edge of the community, flowing northwest toward the Millstone River at Plainsboro, and thus part of the Raritan River watershed.

This Middlesex County, New Jersey state location article is a stub.