The Town of Deerfield is on the eastern border of the county and northeast of the City of Utica.

In Walter D. Edmonds' 1936 novel "Drums Along the Mohawk" and the 1939 film of the same name, the story portrays settlers of the New York frontier in the 1700s.

The main protagonists (played in the film by Henry Fonda and Claudette Colbert) leave their luxurious home to build a small frontier farm in Deerfield in the Mohawk Valley.

The New York State Thruway and the Erie Canal pass south of the town.

The Mohawk River once formed the southern border of the town but has since been annexed into Utica.