Teterboro is home to a strong concentration of industrial activity. As of the 2000 Census it was the smallest municipality in New Jersey by population, which was 18 at that time. The borough has a total area of 1.1 square miles, all of which is land. The New Jersey Turnpike, Interstate 80, regional highways, and bus service to New York City ensure transportation efficiencies. Teterboro is best known as the home of Teterboro Airport, which takes up most of the borough, along with portions of Hasbrouck Heights and Moonachie. It is also home to the Teterboro campus of the Bergen County Technical Schools.