North Apollo is a borough in Armstrong County, Pennsylvania, United States. The population was 1,252 at the 2020 census. North Apollo is located along the Kiskiminetas River in southern Armstrong County at 40°35′36″N 79°33′28″W / 40.59333°N 79.55778°W. It is bordered by the borough of Apollo to the south and by the borough of East Vandergrif…North Apollo is a borough in Armstrong County, Pennsylvania, United States. The population was 1,252 at the 2020 census. North Apollo is located along the Kiskiminetas River in southern Armstrong County at 40°35′36″N 79°33′28″W / 40.59333°N 79.55778°W. It is bordered by the borough of Apollo to the south and by the borough of East Vandergrift across the river to the west.