Teterboro is a borough in Bergen County, located in northeastern New Jersey between the Hudson River and the New York State line. The borough is a very small borough whose land use is closely associated with the airport and surrounding commercial and industrial properties. Bergen County ranges from the Palisades and densely developed eastern communities to the Hackensack River valley and the wooded Ramapo foothills in the north and west. The county is known for active downtowns, major retail destinations, healthcare institutions, parks, corporate offices, and a strong residential market. Routes 4 and 17, Interstate 80, the Garden State Parkway, and regional rail and bus service connect the county with Hackensack, the Meadowlands, and New York City. Nearby downtowns, schools, parks, employment areas, and transportation routes connect Teterboro with the rest of Bergen County.