Etra, New Jersey
Etra is an unincorporated community located within East Windsor Township, in Mercer County, New Jersey, United States. It consists mostly of residential homes and farmland. East Windsor's largest park, Etra Lake Park, is located just east of the community.Roads and highways
travels through Etra and passes Etra Lake. In the center of Etra, CR 571 intersects Cedarville Road and Milford Road, the latter a rural road that provides access to Twin Rivers, Route 133, and the New Jersey Turnpike via Route 33. Access to and from the Turnpike is through its interchange 8.