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Mountainside

In Union County, New JerseyAbout 7,228 people live here.

Ask about Mountainside

Ask in your own words. We look up programs and offices for Mountainside and tell you where to go next.

Local offices in Mountainside

We found these on official websites. Call before you go, since hours and places can change.

  • Utilities · City office

    Finance Office and Tax Collector

    1385 US Highway 22 East, Mountainside, NJ 07092

    Help here

    • Property tax and sewer fee billingAsk about property tax or sewer fee bills and how to pay them.

    Last checked October 9, 2026 · Found on mountainside-nj.com

  • Older adults · City office

    Mountainside Senior Services

    1385 US Highway 22, Mountainside, NJ 07092

    Help here

    • Senior meals, transportation, and activitiesEligible older residents can ask about meal delivery, van rides, fitness, and other senior programs.
    • Senior property tax relief applicationsEligible seniors and residents with Social Security disability can get information about New Jersey property tax relief applications.

    Last checked October 9, 2026 · Found on mountainside-nj.com

  • Library · City office

    Mountainside Public Library

    1 Constitution Plaza, Mountainside, NJ 07092

    Help here

    • Library materials and programsBorrow books and other materials or find library programs and community resources.

    Last checked October 9, 2026 · Found on mountainsidelibrary.org

  • Local office · City office

    Mountainside Borough Hall

    1385 US Highway 22 East, Mountainside, NJ 07092

    Help here

    • Borough services and informationContact Borough Hall for information about town services and offices.

    Last checked October 9, 2026 · Found on mountainside-nj.com

Borough of Mountainside website

Checked on October 9, 2026

Nonprofits that serve Mountainside

Each one serves this area. Call before you go, since services and hours change.

Food bank

Food banks supply the food pantries and meal sites near you. Call or check the website to find one close by.

Free legal help

Free help with civil legal problems, like eviction, benefits and family law, for people with low incomes. Funded by the Legal Services Corporation.

Community action

Local nonprofits that help people with low incomes. Many help with energy bills, rent, jobs and taxes. Call to ask what they offer now.

  • Nonprofit

    Plainfield Action Services

    Serves the City of Plainfield only

    515 Watchung Avenue, City Hall Annex Building, Plainfield, NJ 07060

    Listed on nj.gov, checked on October 9, 2026

  • Nonprofit

    Union County

    Serves Union County except Plainfield

    10 Elizabethtown Plaza, Administration Building, Elizabeth, NJ 07207

    Listed on nj.gov, checked on October 9, 2026

Offices for all of Union County

Mountainside is in Union County. These county and state offices serve people there too.

  • State office · City office

    City of Plainfield WIC Program

    510 Watchung Ave., Plainfield, NJ 07060

    Help here

    • WIC nutrition benefitsEligible pregnant or postpartum people, infants, and young children can apply for WIC food and nutrition support.Apply online

    Last checked October 8, 2026 · Found on nj.gov

  • Community action · Nonprofit

    PROCEED, Inc.

    1126 Dickinson St., Elizabeth, NJ 07201

    Help here

    • Family and community supportUnion County residents can ask about family support, health services, and help with energy costs.

    Last checked October 8, 2026 · Found on proceedinc.com

  • Local office · Regional office

    NJ 211

    Help here

    • Community service referralsCall NJ 211 to find local help with housing, food, health care, and other needs.Read more

    Last checked October 9, 2026 · Found on nj211.org

  • Courts and legal help · State office

    Union Vicinage Court User Resource Center

    Union County Courthouse, 2 Broad St., Elizabeth, NJ 07207

    Help here

    • Court self-help and procedural informationGet help understanding court forms and procedures, plus referrals to community services.

    Last checked October 8, 2026 · Found on njcourts.gov

  • Library · Regional office

    Libraries of Union County Consortium

    Help here

    • Public library servicesFind public libraries across Union County and access their educational and recreational services.

    Last checked October 8, 2026 · Found on luccnj.org

Everything in Union County

New Jersey programs by kind of help

These are run by New Jersey and work the same everywhere in the state. Each page lists the programs and how to apply.

Checked on October 8, 2026

Federal help anyone can use

These come from the federal government, so they work the same in every state.

Checked on October 9, 2026

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From this page: /new-jersey/places/mountainside

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