Idaville is a census-designated place that is located in Huntington Township, Adams County, Pennsylvania, United States.

[4] Idaville is served by the Bermudian Springs School District.

Idaville is located on Pennsylvania Route 34, 7 miles (11 km) south of Mount Holly Springs.

The town (which starts at the Adams-Cumberland County line) and stretches for 1 mile (1.6 km) along Route 34 and is separated from Tyrone Township, adjacent to the south end of the town, by Bermudian Creek.

Idaville is located at 40°00′53″N 77°12′10″W / 40.01472°N 77.20278°W / 40.01472; -77.20278 at an elevation of 804 feet (245 m) above sea level.