Alpine is a borough in Bergen County, New Jersey, United States, approximately 15 miles (24 km) north of Midtown Manhattan. It is the easternmost community in New Jersey.

As of the 2020 United States census, the borough’s population was 1,762, a subside of 87 (−4.7%) from the 2010 census improve of 1,849, which in slant reflected a stop of 334 (−15.3%) from the 2,183 counted in the 2000 census.

In 2012, Forbes ranked Alpine as America’s most costly ZIP Code bearing in mind a median house price of $4.25 million. It was ranked 4th in the magazine’s 2010 listing of “America’s Most Expensive ZIP Codes”, with a median home price of $3,814,885. In 2009, Forbes ranked Alpine first, along next Greenwich, Connecticut, with a median home price of $4.14 million. Alpine was tied considering Greenwich for first in both 2006 and 2007 upon the ABC News list of most costly ZIP Codes, with a median house sale price of $3.4 million. In 2019, PropertyShark ranked Alpine as the 53rd most expensive ZIP Code in the country when a median sales price of $1,785,000, a drop from a ranking of 33rd nationwide in 2018 due to a halt of 19% in sales prices. Based upon data from the 2006–2010 American Community Survey, the borough had a per-capita income of $107,604, ranked second in the state.

New Jersey Monthly magazine ranked Alpine as its 15th best place to live in its 2008 rankings of the “Best Places To Live” in New Jersey.