Public Libraries in Mercer County
- Ewing Branch Library
- Hickory Corner Road Branch Library
- Hightstown Memorial Library
- Hollowbrook Branch
- Hopewell Branch Library
- Robbinsville Branch Library
- Twin Rivers Branch Library
- West Windsor Branch Library
Public Libraries by City
- East Windsor
- Ewing Township
- Hightstown
- Pennington
- Princeton Junction
- Robbinsville Township
- Trenton
- Trenton
