  oliver township is a township in mifflin county, pennsylvania, united states. the population was 2,060 at the 2000 census. ==geography== according to the united states census bureau, the township has a total area of 35.0&nbsp;square miles (90.6&nbsp;kmÂ²), of which, 34.5&nbsp;square miles (89.4&nbsp;kmÂ²) of it is land and 0.4&nbsp;square miles (1.1&nbsp;kmÂ²) of it (1.26%) is water. ==demographics== as of the census of 2000, there were 2,060 people, 804 households, and 601 families residing in the township. the population density was 59.7 people per square mile (23.0/kmÂ²). there were 962 housing units at an average density of 27.9/sq&nbsp;mi (10.
Populated_places_established_in_1762 Townships_in_Mifflin_County,_Pennsylvania Townships_in_Pennsylvania