Exeter is a town in Washington County, Rhode Island, United States.

Exeter extends east from the Connecticut border to the town of North Kingstown.

Exeter's postal code is 02822, although small parts of the town have the mailing address West Kingston (02892) or Saunderstown (02874).

The town of Exeter was formed in 1742 from the western part of North Kingstown.

18.4% of all households were made up of individuals, and 5.6% had someone living alone who was 65 years of age or older.