New York State has the most Interstate Numbers in America 🛣️

New York State has 31 active, signed Interstate Highways (9 mainlines, 22 auxiliary routes) — the most of any state.

Main Interstate Routes in New York:

I-78: Short, crosses from NJ into Manhattan.
I-81: Connects PA border near Binghamton to the Canadian border via Syracuse.
I-84: Crosses the state from PA to CT through Port Jervis and Brewster.
I-86: Runs east-west across the Southern Tier (Southern Tier Expressway).
I-87: Connects NYC (via Major Deegan) to the Canadian border (Adirondack Northway).
I-88: Connects Binghamton and Schenectady.
I-90: Longest route, stretches from PA line to MA line via Buffalo, Rochester, Syracuse, and Albany (NYS Thruway).
I-95: Runs through NYC, known as the Cross Bronx and New England Thruway.
I-99: Short connector near Corning.

Auxiliary and Other Routes:

I-190/290/990: Connects Buffalo, Niagara Falls, and Amherst.
I-278/478/678/695/878: NYC area routes including the BQE and Van Wyck Expressway.
I-287/684: Major NYC bypass and connector in the Hudson Valley.
I-390/490/590: Rochester area spurs and loops.
I-481/690: Syracuse city loop and bypass.
I-587/787/790: Capital District and Utica area connections.
I-781: Short spur to Fort Drum.