Arendtsville is a borough in Adams County, Pennsylvania, United States.

The borough lies on Pennsylvania Route 234 and is well known for its annual Apple Harvest Festival in the fall.

[5] According to the U.S. Census Bureau, the borough has a total area of 0.8 square miles (2.1 km2), all land.

As of the census[8] of 2000, there were 848 people, 329 households, and 242 families residing in the borough.

22.8% of all households were made up of individuals, and 13.1% had someone living alone who was 65 years of age or older.