Blacktail is an unincorporated community and census-designated place (CDP) built around Blacktail Lake in Williams County, North Dakota, United States. It was first listed as a CDP prior to the 2020 census. As of the 2020 census, Blacktail had a population of 61.
The CDP is in northwestern Williams County, in the north-central part of Blacktail Township. It consists of residences built on the shore of Blacktail Lake, a small reservoir built on Blacktail Creek, a southeast-flowing tributary of the Little Muddy River, which flows south to the Missouri River at Williston, south of Blacktail.
Blacktail first appeared as a census designated place in the 2020 U.S. census.
It is in the Williston Basin School District 7. Williston High School is the zoned high school.
It was formerly in the Williams County School District 8 (formerly New School District). The district only served grades K-8 and high school students were sent to Williston High, then in the Williston Public School District 1. District 8 also sent high school students to the Nesson School District in Ray and to the Tioga School District in Tioga. In 2021 District 8 merged with District 1 into the Williston Basin School District 7.