The following highways are numbered 22A:
Vermont Route 22A (VT 22A) is a 44.738-mile-long (71.999 km) state highway in western Vermont, United States. It is the northward continuation of New York State Route 22A. Its southern end is at the New York state line in Fair Haven and its northern end is in Ferrisburgh at U.S. Route 7 (US 7). As it is an extension of NY 22A, VT 22A is a spur route of NY 22, which runs roughly parallel to VT 22A west of the state border. This is a rather unusual case of one state having a suffixed route of another state's primary route. Vermont does not currently have a "Route 22."
State Route 22 is a 172.8-mile long (278.1 km) south-to-north state highway in the western part of Tennessee, United States. It begins at the Mississippi state line in McNairy County, where the roadway continues as Mississippi Highway 2. It ends at the Kentucky state line in Lake County, when it crosses into the Kentucky Bend, a detached portion of Fulton County, Kentucky. The monument for the 1862 Battle of Island Number Ten in the American Civil War is located on SR 22, about 3 mi (4.8 km) north of Tiptonville.
New York State Route 22A (NY 22A) is a short north–south state highway located within Washington County, New York, in the United States. The route extends for 10.6 miles (17.1 km) from an intersection with NY 22 in the town of Granville to the Vermont state line in the town of Hampton, where it becomes Vermont Route 22A (VT 22A). NY 22A was originally designated as New York State Route 286 in the 1930 renumbering of state highways in New York. It was renumbered to its current designation in the early 1940s.
New York State Route 273 (NY 273) was a state highway in northern Washington County, New York, in the United States. It began at an intersection with U.S. Route 4 (US 4) east of the village of Whitehall and ended at the Vermont state line in the town of Hampton, just east of a junction with NY 22A. The route passed through largely rural areas and entered only one community, the small hamlet of East Whitehall.