Deerfield is a town in Rockingham County, New Hampshire, United States.

In 1765, while a second petition was pending, two local hunters presented colonial governor Benning Wentworth with a deer.

The incorporation act for Deerfield was signed by three members of the Leavitt family, including Capt.

Leavitts Hill in Deerfield was named for the family, who had first settled in nearby Exeter.

[3] "Deerfield Parade", a hilltop district first settled circa 1740, was located on the early postal route between Concord and Portsmouth.

Here, the militia of the Revolutionary and Civil wars trained and "paraded" on the village common.

Once a thriving farm community which was disappointed when bypassed by railroads, the town in 1876 established the Deerfield Fair.

Now billed as "New England's Oldest Family Fair", the four-day event draws huge crowds each autumn to admire animals, produce and crafts, or to enjoy amusement park rides.

Deerfield is in southeastern New Hampshire, on the western side of Rockingham County.

The highest point in Deerfield as well as in Rockingham County is the summit of Nottingham Mountain, at 1,345 feet (410 m) above sea level, near the town's western border.

White Building is now commercial space and houses, among other things, the town offices and the police department.