Tioga (/taɪˈoʊɡə/ ty-OH-gə) is a city in Williams County, North Dakota, United States.

The population of the city increased dramatically in the 1950s following the discovery of oil nearby in the Williston Basin.

34.5% of all households were made up of individuals, and 16.8% had someone living alone who was 65 years of age or older.

34.9% of all households were made up of individuals, and 23.7% had someone living alone who was 65 years of age or older.

The company presently operates and owns oil producing facilities with numerous local businesses supporting the oil industry, and Tioga is located nine miles north of North Dakota's sole oil refinery, which is presently owned by Tesoro after it was sold to it by BP in 2001.

Tioga is located along freight railroad tracks which presently belong to BNSF Railway.

[14][15] Amtrak's Empire Builder, which operates between Seattle/Portland and Chicago, passes through the town on BNSF tracks, but makes no stop.

The nearest station is located in Stanley, 30 miles (48 km) to the east.

A general aviation airport, Tioga Municipal Airport (FAA code D60) is located two miles southeast of the city, with a main paved runway (12/30) just under one mile long and 75 feet wide (1555 meters long and 23 meters wide) and a secondary turf runway (3/21) which is 3200 feet (975 meters) long and 120 feet (37 meters) wide.