Solen is a city in Sioux County, North Dakota, United States and on the Standing Rock Indian Reservation.

[3] The town has a gas station and automotive repair shop called Hoffman's Garage[5] which has been family owned and operated since the early 1900s.

Solen was founded in 1910 along a Northern Pacific Railway branch line that ran from Mandan to Mott.

The name comes from Mary Louise Van Solen, the half-Lakota and half-French daughter of Eagle Woman (Matilda Galpin)[6] and one of the first schoolteachers on the Standing Rock Indian Reservation.

According to the United States Census Bureau, the city has a total area of 0.30 square miles (0.78 km2), all land.

The racial makeup of the city was 36.1% White, 51.8% Native American, and 12.0% from two or more races.

There were 41.7% of families and 40.0% of the population living below the poverty line, including 66.7% of under eighteens and 50.0% of those over 64.