Upper Saddle River is a borough in Bergen County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 8,353, an increase of 145 (+1.8%) from the 2010 census count of 8,208, which in turn reflected an increase of 467 (+6.0%) from the 7,741 counted in the 2000 census.

Route 17 is a state highway in Bergen County, New Jersey, United States, that provides a major route from the George Washington Bridge, Lincoln Tunnel and other northeast New Jersey points to the New York State Thruway at Suffern, New York. It runs 27.20 mi (43.77 km) from an intersection with Route 7 and County Route 507 (CR 507) in North Arlington north to the New York border along Interstate 287 (I-287) in Mahwah, where New York State Route 17 (NY 17) continues into New York. Between Route 7 and Route 3 in Rutherford, Route 17 serves as a local road. From Route 3 north to the junction with U.S. Route 46 (US 46) in Hasbrouck Heights, the road is an arterial road with jughandles. The portion of Route 17 from US 46 to I-287 near the state line in Mahwah is a four- to six-lane arterial with all cross traffic handled by interchanges, and many driveways and side streets accessed from right-in/right-out ramps from the right lane. For three miles (5 km) north of Route 4, well over a hundred retail stores and several large shopping malls line the route in the borough of Paramus. The remainder of this portion of Route 17 features lighter suburban development. The northernmost portion of Route 17 in Mahwah runs concurrently with I-287 to the New York border.