[4] Ulster Township is located in north-central Bradford County, on the west bank of the Susquehanna River.

[5] U.S. Route 220 runs through the township along the west side of the Susquehanna River, passing through the unincorporated communities of Ulster (the largest settlement in the township) and Milan.

Bridge Street crosses the Susquehanna from Ulster village into Sheshequin Township.

There were 573 housing units at an average density of 30.2 per square mile (11.7/km2).

21.5% of all households were made up of individuals, and 8.0% had someone living alone who was 65 years of age or older.