Mountainside, New Jersey, is a charming borough located in Union County. Nestled against the Watchung Mountains, this close-knit community offers a suburban feel while being conveniently situated near major urban areas, including Newark and New York City. Covering an area of just over 1.7 square miles, Mountainside is known for its picturesque landscapes, including parks and wooded areas that provide ample outdoor recreational opportunities. The borough is primarily residential, boasting a range of housing options, from modern developments to more traditional homes. Mountainside is served by well-rated public schools, making it an attractive choice for families. Additionally, local amenities include shopping centers, dining options, and easy access to public transportation, which enhances its appeal for commuters. Residents can enjoy the natural beauty of the nearby Watchung Reservation, which offers hiking trails, picnic areas, and scenic views. The community is also characterized by its active civic engagement, with various events and activities that promote neighborly spirit. Overall, Mountainside combines the tranquility of suburban living with the convenience of proximity to larger cities.