The Book Drop is OPEN 24/7


Number of items checked out and number of holds has been increased to 10 per library card.


Although we’re really looking forward to welcoming our patrons back into our library, it’s clear that we will need to take a step-by-step approach in order to appropriately prepare our building and implement systems to keep both our staff and patrons safe. 

You can place a hold on any library item using the online catalog (login with your library card number and phone number as your password) on our website or by calling the library. After the book is located, you will receive a phone call and given a 2-hour window for pickup, usually within 24 hours from when the hold was initiated.  Just call the library when you’ve arrive in the parking lot and a staff member will place your items on a table outside of the front door for you to pick up.

Curbside Pickup Hours

Monday 10:30 - 3:30                        Thursday 2:30 - 7:30

Tuesday 2:30 - 7:30                         Friday 10:30 - 3:30

Wednesday 10:30 - 3:30


You must have a Mountainside Library Card to access electronic resources. If your card has expired or you are a Mountainside resident and do not have a library card, please fill out this form or call the library's phone number and you will be automatically renewed or assigned a temporary card so you will be able to access our electronic sources.


eBooks and Audiobooks are available through the LibbyApp or eLibraryNJ  

If you are using a desktop or laptop computer click here for further instructions.

If you have a question about how to use any of our online resources you can email us at info@mountainsidelibrary.org.
For kids, don't forget Tumblebooks for Picture Books, Easy Readers, Graphic Novels, Nonfiction, Videos, Puzzles and Games


Summer Reading 2020!

It's not too late to sign up for SUMMER READING with READsquared.  Go to http://mountainsidelibrary.readsquared.com/ to sign up and join our summer reading program which runs from June 29th through August 28th!

We know this summer is going to be different, but we have a variety of exciting programs to offer via Zoom that can be found on our Calendar. We will continue to offer our Story Times with Miss Elizabeth three times a week, as well as Squiggle Club and other programs through ZOOM.  We also have one off programs with Stone Soup (July 7th), Rizzos Wildlife (July 16th), Myth, Fables & Tall Tales (July 22nd). and Meredith LaVande of MonkeyMonkey Music (August 4th). For adults we have Virtual Book Club on Monday evening, July 6 at 7:00 and Tuesday afternoon, July 7 at 1:00 both via Zoom.  For the book club Zoom link send an email to info@mountainsidelibrary.org.  Check our calendar for Upcoming Events on our website.

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The Mountainside Public Library is the proud first recipient of the
LUCCy Award!

The Libraries of Union County Consortium (LUCC) awards the LUCCy yearly to a Public Library in Union County to honor Excellence in Library Service.  Read more...