News

Electronic Recycling and Clean Communities Day
By Borough of Mountainside - Sep 24, 2026
- Latest News
Shared Service with Westfield Conservation Center
By Borough of Mountainside - Sep 17, 2026
- Latest News
BEECHWOOD SCHOOL CONSTRUCTION OF NEW SOCCER FIELD
By Borough of Mountainside - Sep 06, 2026
- Latest News
MOUNTAINSIDE LIBRARY TEMPORARY CLOSURE
By Borough of Mountainside - Sep 06, 2026
- Latest News
Central Ave Closed
By Borough of Mountainside - Jul 14, 2026
- Latest News
- Emergency Alerts
MOUNTAINSIDE TOWN HALL MEETING
By Borough of Mountainside - Jul 01, 2026
- Latest News
PURCHASE AMERICA'S 250TH MOUNTAINSIDE T-SHIRTS
Jun 22, 2026
- Latest News
Deerfield and Borough Hall Tennis Courts Resurfacing
May 22, 2026
Mountainside America 250 Events (May and June)
May 05, 2026
2026 American Water Main Replacement Projects
2026 American Water Main Replacement Project

The following streets will have water mains replaced in the coming months:

Short Drive from Central Ave to Ridge Drive

Entire Length of Ridge Drive

Entire length of Heckel Drive

Puddingstone Road from Short Drive to Cherry Hill Road

Entire length of Sunnyview Road

Click Here for more information
By Borough of Mountainside - Apr 20, 2026
- Latest News

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Official Website of Mountainside, New Jersey

1385 US Highway 22 East

Mountainside, NJ 07092