  porter township is a township in huntingdon county, pennsylvania, united states. the population was 1,917 at the 2000 census. ==history== the juniata iron works, barree forge and furnace, and pulpit rocks are listed on the national register of historic places. ==geography== according to the united states census bureau, the township has a total area of 35.6&nbsp;square miles (92.3&nbsp;kmÂ²), of which, 35.4&nbsp;square miles (91.6&nbsp;kmÂ²) of it is land and 0.2&nbsp;square miles (0.6&nbsp;kmÂ²) of it (0.67%) is water. ==demographics== as of the census of 2000, there were 1,917 people, 768 households, and 565 families residing in the township. the population density 
Townships_in_Huntingdon_County,_Pennsylvania