The Town of Wilton is in the northeastern part of the county, northeast of Saratoga Springs, which it borders.

[5] A narrow-gauge railway built in 1882, the Saratoga, Mount McGregor and Lake George Railroad, ran through Wilton.

Throughout the 1990s the town took advantage of its proximity to Saratoga Springs, by expanding suburban and commercial areas.

On the western side of the town, the plain gives way to the cliffs of the McGregor Fault, and the Palmertown Range, this can be seen along US Route 9.

The majority of the population resides close to the border with Saratoga Springs, the north, east, and west parts of the town are relatively rural.