There were 488 housing units at an average density of 36.2 per square mile (14.0/km2).
[4] There were 474 households, 34.6% had children under the age of 18 living with them, 74.3% were married couples living together, 4.6% had a female householder with no husband present, and 18.1% were non-families.
13.7% of households were made up of individuals, and 5.1% were one person aged 65 or older.
As of 2020, there were 39.97 miles (64.33 km) of public roads in North Heidelberg Township, of which 12.40 miles (19.96 km) were maintained by the Pennsylvania Department of Transportation (PennDOT) and 27.57 miles (44.37 km) were maintained by the township.
[5] No numbered highways pass through North Heidelberg Township.