Locustdale (also known as "Locust Dale") is a census-designated place (CDP) that is located on the border of Columbia and Schuylkill counties, Pennsylvania, United States.

According to the United States Census Bureau, the CDP has a total area of 0.085 square miles (0.22 km2), all land.

There were 32 housing units at an average density of 3,411.8 per square mile (1,317.3/km2).

25.0% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.

There were 18.2% of families and 16.0% of the population living below the poverty line, including no under eighteens and 15.4% of those over 64.