| Official Name: | Blacktail, North Dakota |
| Settlement Type: | Census-designated place |
| Pushpin Map: | North Dakota#USA |
| Pushpin Label: | Blacktail |
| Coordinates: | 48.4328°N -103.74°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | North Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | Williams |
| Subdivision Type3: | Township |
| Subdivision Name3: | Blacktail |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 0.57 |
| Area Land Sq Mi: | 0.33 |
| Area Water Sq Mi: | 0.23 |
| Area Total Km2: | 1.47 |
| Area Land Km2: | 0.86 |
| Area Water Km2: | 0.61 |
| Population As Of: | 2020 |
| Population Density Km2: | 71.02 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 2090 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 58801 (Williston) |
| Area Code: | 701 |
| Blank Name: | FIPS code |
| Blank Info: | 38-07456 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2805286 |
| Population Total: | 61 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 183.73 |
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.
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.[2]
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).[3] The district only served grades K-8 and high school students were sent to Williston High, then in the Williston Public School District 1.[4] District 8 also sent high school students to the Nesson School District in Ray and to the Tioga School District in Tioga.[5] In 2021 District 8 merged with District 1 into the Williston Basin School District 7.[6]