Tilton Northfield is a census-designated place (CDP) representing two adjacent villages in the towns of Tilton in Belknap County and Northfield in Merrimack County in the U.S. state of New Hampshire. The CDP encompasses the town centers of both Tilton and Northfield, located on either side of the Winnipesaukee River. The population was 3,324 at the 2020 census.

Tilton is a town on the Winnipesaukee River in Belknap County, New Hampshire, United States. The population was 3,962 at the 2020 census, up from 3,567 at the 2010 census. It includes the villages of Tilton and Lochmere and part of the village of Winnisquam. Tilton is home to the Tilton School, a private preparatory school.