 As Rondout is an unincorporated community rather than a municipality, it lacks clearly defined borders, and shares postal codes with Lake Bluff, Lake Forest and Libertyville, Illinois.It has its own elementary school which comes under Rondout School District 72.Illinois Route 176 passes east–west through Rondout, serving as the "main street" of the community, where it is also called "Rockland Road".