McCaskill is a town[3] in Hempstead County, Arkansas, United States.

According to the United States Census Bureau, the city has a total area of 0.7 square miles (1.8 km2), all land.

There were 34 housing units at an average density of 45.9 per square mile (17.7/km2).

17.9% of all households were made up of individuals, and 7.1% had someone living alone who was 65 years of age or older.

There were 33.3% of families and 37.5% of the population living below the poverty line, including 52.5% of under eighteens and 100.0% of those over 64.