North Apollo is a borough in Armstrong County, Pennsylvania, United States. The population was 1,297 at the 2010 census.
North Apollo is located along the Kiskiminetas River in southern Armstrong County at 40°35′36″N 79°33′28″W (40.593301, -79.557793). It is bordered by the borough of Apollo to the south and by the borough of East Vandergrift across the river to the west.
According to the United States Census Bureau, the borough has a total area of 0.62 square miles (1.6 km2), of which 0.54 square miles (1.4 km2) is land and 0.039 square miles (0.1 km2), or 9.22%, is water.
As of the census of 2000, there were 1,426 people, 583 households, and 430 families residing in the borough. The population density was 2,662.3 people per square mile (1,019.6/km2). There were 626 housing units at an average density of 1,168.7 per square mile (447.6/km2). The racial makeup of the borough was 97.19% White, 1.54% African American, 0.14% Native American, 0.14% Asian, 0.07% Pacific Islander, 0.28% from other races, and 0.63% from two or more races. Hispanic or Latino of any race were 0.14% of the population.
There were 583 households, out of which 31.9% had children under the age of 18 living with them, 57.1% were married couples living together, 12.9% had a female householder with no husband present, and 26.2% were non-families. 24.0% of all households were made up of individuals, and 15.3% had someone living alone who was 65 years of age or older.