The Twin Rivers Branch is offering only curbside pickup until further notice. Curbside hours are M-Th from 9:30 am - 8:15 pm, F-Sat from 9:30 am - 4:45 pm. Outdoor programming will continue as scheduled. Thank you for your patience during this time. Click here to schedule a curbside appointment.

The MyMCLSNJ App

Access the Mercer County Library System of New Jersey from your iPhone, iPad or iPod Touch. Manage your account, search the catalog, renew and reserve books.

  • Search MCL’s Catalog
  • Find the Nearest Library
  • See Upcoming Events
  • Schedule Curbside Pick-ups
  • Contact Us
  • Find eBooks, Audiobooks, and Movies
  • Access MCL’s Databases and eResources
  • View Your Library Card Barcode
  • See Your Library Account
  • Renew Checkouts
  • Follow the Library’s Social Media Accounts
  • Get Book Recommendations

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