Blackwell is a city in Coke and Nolan Counties in the U.S. state of Texas.

According to the United States Census Bureau, the city has a total area of 0.59 square miles (1.53 km2), all land.

[4] As of the 2020 United States census, 258 people, 92 households, and 55 families resided in the city.

As of the census[3] of 2000, 360 people, 153 households, and 106 families resided in the city.

The median income for a household in the city was $29,659, and for a family was $33,250.