- Mondays - Thursdays: 9:30 a.m. to 9:00 p.m.
- Fridays: 9:30 a.m. to 5:00 p.m.
- Saturday: 9:30 a.m.-5:00 p.m.
- Sundays: 12:30 p.m. to 5:00 p.m.. (Closed during the summer months.)
On weekends, for a quick response, we recommend that you telephone a librarian.
Lawrence Headquarters Branch: 609-883-8292
Ewing Branch: 609-882-3148
Hickory Corner Branch: 609-448-0957
Hightstown Memorial Library Branch: 609-448-1474
Hollowbrook Branch: 609-883-5914
Hopewell Branch: 609-737-2610
Robbinsville Branch: 609-259-2150
Twin Rivers Branch: 609-448-0478
West Windsor Branch: 609-275-8901 or 609-799-7311
Directions to all Mercer County Library System Branches
We can provide brief answers to your factual reference questions and suggest sources to help meet your information needs. When appropriate, we will email attachments in our responses to you. We will respond within 24 hours from the time that you submit your request.