Contact Us

Ewing Branch609-882-3130609-882-3148
Hickory Corner Branch609-448-1330609-448-0957
Hightstown Memorial Library Branch609-448-1474
Hollowbrook Branch609-883-5914
Hopewell Branch609-737-2610
Lawrence Headquarters Branch609-882-9246609-883-8292
Robbinsville Branch609-259-2150
Twin Rivers Branch609-443-1880609-448-0478
West Windsor Branch609-799-0462609-275-8901
Please view our Hours Page before calling to make sure the branch is open.

Ask a Librarian

Contact our Reference librarians through our online form at any time! We are always staffed with a Reference Librarian during operating hours and will respond in a timely manner. This functions through email and does not require a library card.

General and Technical Support

Need help with with our catalog, website or other services? Want to make suggestions on how the Mercer County Library might better serve your needs? Fill out this form to contact our IT librarians! We are staffed every day during operating hours, except for Sundays and will respond in a timely manner. Please make sure to be descriptive when you are asking for technology help. It moves the process which faster.

If you need help finding out your PIN number to log into your account, please note that it is the last four digits of the telephone number you provided as your home phone.

Interlibrary Loan Request

Want a book that our Library System does not have? Fill out this form to request that item to be loaned from somewhere else in the state! We will contact you with more information about your request. This is best used for specialized, expensive, or older books that a typical bookstore or library does not have.

Library Card Application and Renewal

Applications are reviewed by one of our employees periodically between the hours of 10:00 am and 4:00 pm, Monday through Friday, and if you file a request after 4:00 pm, you may not be issued one until the following day. This application is only available to Resident Card holders at this time. All other types of card holders must visit their home branch in person with the required documents in hand. For more information on eligibility and/or valid proof of ID and residency, please see System Policies: Applying for a Library Card.

Suggest for Purchase

Want us to purchase a book that you want to read and that will benefit our collection? Fill out this form for us to consider your suggestion! We will contact you when we decide to purchase the book or not. Please do not request upcoming releases more than three months in advance.