Mountainside Police Department

10/21/2026

The Mountainside Police Department would like to announce and welcome its newest Police Officer James Greaney. Officer Greaney joins us with prior police experience from the city of Plainfield. We wish him a long and happy career with the Mountainside Police.

10/20/2026

09/07/2026

🚸 First Day of School Safety Reminder 🚸

As our kids head back to school tomorrow, please remember to drive carefully and SLOWLY throughout town. Give yourself extra travel time and exercise extreme caution. Watch for children crossing the street, obey crossing guards (always walk bikes across intersections), and NEVER pass a stopped school bus. Parents, once again it is illegal for children under the age of 15 to operate Ebikes/Escooters and there should be no K-8 children commuting to school on these machines.

Let’s work together to keep our students and families safe this school year.

📚 Wishing everyone a safe and successful first day of school!

08/05/2026

Thank you for coming to Mountainside's National Night Out! We especially want to thank our generous supporters for making our event a continued success.

07/07/2026

Our Youth Academy is in full swing! On day one he recruits received instruction from members of the Union County Prosecutor's Office including a live drone demonstration and a visit from the Union County SWAT Team. On day two we visited with the Mountainside Rescue Squad and the Mountainside Fire Department where we had a hands-on experience with various first aid demonstrations and firefighting techniques. The kids thoroughly enjoyed the wet down at the end of the fire fighting demonstration!

06/24/2026

https://www.nj.gov/mvc/vehicletopics/ebike.htm

The NJMVC is now accepting appointments for licensing and registration of Ebikes/Escooters. Please visit the attached link for helpful information. Once again, it is illegal and dangerous for anyone under the age of 15 to operate one of these machines regardless of license and registration, and we look forward to the cooperation of parents to help keep your kids safe. We hope everyone is enjoying the summer thus far, and please be on the lookout for pedestrians and bicyclists alike.

06/23/2026

New Providence Road will be closed for paving near Trailside Museum on Wednesday 6/24 in between Coles Ave and Bayberry Ln from 7AM-3:30PM. The entrance to Trailside Museum will be closed intermittently as well. Please plan alternate route.

05/28/2026

Ebikes and EScooters are ILLEGAL for children under the age of 15. We have seen the tragedy in various jurisdictions that arises from young people operating these machines.
If the child is 15 or older, they must have a valid license to operate an ebike/escooter, and the bike or scooter must be properly registered and insured.
Parents, please have safety discussions with your children to ensure they are operating their non-ebikes or scooters in a safe and courteous manner and please make sure your children are wearing helmets at all times. Similarly, we encourage all motorists to always be on the lookout for bicyclists and pedestrians alike while driving.

05/19/2026

May 19, 2026
Mountainside Fire Department Responds to Structure Fire on Chattin Ct
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Incident Details
May 19, 2026 — The Mountainside Fire Department responded to a reported structure fire on Chattin Ct today. Upon arrival, Police observed heavy smoke billowing from a single-family home and, all occupants and pets had safely evacuated prior to the arrival of emergency crews.

The Mountainside Fire Department, with assistance from Scotch Plains, Westfield, and Summit fire departments worked to extinguish the blaze, which resulted in extensive smoke damage to the residence. Fortunately, there were no injuries reported among the homeowners or first responders.

The affected residents have found temporary shelter while authorities investigate the incident. The fire’s cause has been determined to be non-suspicious.

The Borough of Mountainside extends gratitude to all agencies involved including the Mountainside Rescue Squad, Union County EMS, and OEM along with other agencies standing by while crews worked. The Borough wishes to remind residents to remain vigilant about fire safety.



Chief Joseph Giannuzzi
Mountainside Police Dept

05/18/2026

Please join us this Thursday 5/21 after school at Bovellas on Route 22 for Coffee with a Cop