Explore Mountainside, New Jersey, with this interactive street and satellite map. You can “grab” the Mountainside, NJ street map and move it around to re-centre it. You can change between standard map view and satellite map view by clicking the small square in the bottom left-hand corner of the map. You can use the zoom buttons on the lower right side of the map to zoom in or out to street-level detail. You will find live weather, local and world news below.
This interactive map shows the street layout and satellite imagery for Mountainside, New Jersey. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture to zoom in and out.
Click ⛶ Fullscreen to expand the map to fill your screen for a larger view. To return to the normal page view, press the Escape key on your keyboard, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
Drag the map to pan to any area of New Jersey or beyond. Switch to Satellite view to see high-resolution aerial photography of Mountainside and surrounding areas, including streets, buildings, parks and waterways.
| City | Mountainside |
| State | New Jersey (NJ) |
| County | Union |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.672324 |
| Longitude | -74.357372 |
| Population | 7,049 |
| Density | 673.0 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 07092 |
| Area Code | 201, 551 |
| County Seat | Elizabeth |
| School District | Mountainside Borough School District |
Mountainside is a locality in Union County, New Jersey, United States. It has a population of approximately 7,049. The population density is 673.0 people per km². Mountainside is located at 40.6723°N, 74.3574°W. It observes the Eastern Time (America/New_York) timezone.
Mountainside carries a quiet, inland dignity across its landscape, defined by the steady presence of the Nomahegan Brook as it meanders through the terrain. It lies 1.1 miles north-northwest of Westfield, NJ (from Westfield, NJ: bearing 330°T), and is situated 9.7 miles south-southwest of Essex. The local geography remains defined by these low-lying corridors rather than any dramatic elevation, as even the distant Nook Hill sits five miles away from the immediate surroundings. Residents often observe the soft, diffused light that settles over the open spaces at dusk, casting long shadows across the local flora. While Seeleys Pond provides a reflective stillness just two miles away, the character of the land remains anchored in its suburban density and verdant, managed greenery. The atmosphere here is one of deliberate preservation, where the natural world is carefully integrated into the daily experience of the residents. Mountainside traces its historical roots to a period of measured growth that transitioned the area from its early agricultural origins into a residential enclave. The local economy today functions largely as a professional hub, supported by the broader regional infrastructure that connects the workforce to nearby commercial centers. While the industrial fervor of the past has faded into memory, the legacy of careful land management persists in the way the local infrastructure is maintained. The community values the stability provided by its established schools and the methodical development of its residential streets. Commerce here is quiet and focused, serving the immediate needs of the population while maintaining a respectful distance from the more intense industrial corridors of the region. Mountainside fosters a cultural character defined by civic participation and a deep appreciation for the shared public spaces that define the local identity. The Echo Lake Park, which falls within the protected-area boundaries of Union Co, remains a central point for community engagement and seasonal gatherings. Local events frequently draw families to the public commons, reinforcing a sense of continuity that spans generations of residents. The spirit of the place is reflected in the well-kept paths that follow the Nomahegan Brook, where neighbors encounter one another in the early morning air. While the area does not serve as a primary stage for global celebrity, it remains a place of intellectual and personal focus for those who call it home.
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This page provides an embedded street and satellite map of Mountainside, New Jersey — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.672324, -74.357372. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Mountainside and Union County.
Detailed location data for Mountainside includes the ZIP code (07092), telephone area code (201, 551), county seat of Union County (Elizabeth), and school district assignment (Mountainside Borough School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Mountainside is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |