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| City | Hopatcong |
| State | New Jersey (NJ) |
| County | Sussex |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.932876 |
| Longitude | -74.659328 |
| Population | 14,565 |
| Density | 513.4 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 07843 |
| Area Code | 732, 848 |
| County Seat | Newton |
| School District | Hopatcong Borough School District |
Hopatcong is a locality in Sussex County, New Jersey, United States. It has a population of 14,565. The population density is 513.4 people per km². Hopatcong is located at 40.9329°N, 74.6593°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 7874.
Hopatcong rests on the western edge of a vast, shimmering expanse of water, its landscape a study in rolling hills that spill down to the lake's edge. It lies 6.2 miles north-west of Randolph, NJ (from Randolph, NJ: bearing 324°T), and is situated 6.8 miles north-east of Mount Olive. The terrain here is a blend of dense woodlands, where the scent of pine needles and damp earth hangs heavy, and more open spaces dotted with the sturdy, weathered homes that speak of a long-settled life. Sunlight, when it breaks through the canopy, paints the rough bark of oak and maple trees in broad, golden strokes, and the air often carries the faint, sweet perfume of wild honeysuckle in the summer months. The character of Hopatcong is one of quiet resilience, a place where the rhythm of the seasons dictates the pace of existence, and the presence of the lake shapes both the visual and sensory experience of its inhabitants. The history of Hopatcong is intrinsically tied to its namesake lake, a glacial remnant that has long been a source of both sustenance and recreation. Once a vital transportation route and a hub for early industry, the lake and its surrounding shores have witnessed shifts in the local economy, from the logging and mining operations of earlier centuries to the burgeoning tourism that defines much of Hopatcong's present-day appeal. The summer cottages and marinas that now dot the shoreline are a testament to the enduring allure of this watery heartland, drawing visitors who seek its cooling breezes and recreational opportunities. Generations have found their livelihood here, whether through the small businesses that cater to the seasonal influx or the more enduring trades that continue to serve the year-round residents who call Hopatcong home.
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This page provides an embedded street and satellite map of Hopatcong, New Jersey — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.932876, -74.659328. 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 Hopatcong and Sussex County.
Detailed location data for Hopatcong includes the ZIP code (07843), telephone area code (732, 848), county seat of Sussex County (Newton), and school district assignment (Hopatcong 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 Hopatcong is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 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. |