Alpine is a small, affluent borough located in Bergen County, New Jersey, just across the Hudson River from New York City. Though not part of NYC itself, Alpine is often included in discussions of the greater New York metropolitan area due to its proximity and prominence. Known for its lush, wooded surroundings and expansive estates, Alpine offers a peaceful, suburban atmosphere with a distinctly upscale character. It is consistently ranked among the wealthiest zip codes in the United States, and its serene streets are lined with luxury mansions, gated properties, and elegant architectural styles. Alpine offers excellent schools, a tight-knit community, and proximity to the Palisades Interstate Park for outdoor recreation, while being just a short drive from Manhattan.

Real estate in Alpine is synonymous with luxury. The area is known for its palatial estates, many of which sit on multi-acre lots and feature private gates, indoor pools, home theaters, and sweeping views of the Hudson River or New York skyline. With limited commercial development, the borough remains primarily residential and exclusive, contributing to its appeal among high-net-worth individuals, celebrities, and business executives. Home prices in Alpine regularly exceed several million dollars, with some of the most prestigious estates reaching into eight-figure territory. Despite its exclusivity, Alpine's low property tax rate (relative to value) and quiet lifestyle make it a desirable option for those seeking privacy and proximity to NYC without the congestion of urban life.

Alpine was incorporated as a borough in 1903, but its history dates back to early Dutch settlement in the region. Its name is said to have been inspired by the area's elevated, cliffside topography, which resembles the Alps in miniature. Alpine has long been known for its seclusion and natural beauty, and over the years, it has attracted wealthy residents looking for privacy close to New York City. The Palisades cliffs, which run along the borough’s eastern edge, have been protected since the early 20th century thanks to conservation efforts, and they offer stunning views of the Hudson River. Alpine also played a role in transportation history, with the nearby Alpine Boat Basin and historic trails that served early trade routes. Today, Alpine blends its rich history and natural splendor with a reputation as one of the premier residential enclaves in the region.