  deerfield township is a township in warren county, pennsylvania, united states. the population was 333 at the 2000 census. ==geography== according to the united states census bureau, the township has a total area of , of which,  of it is land and  of it (1.08%) is water. ==demographics== as of the census of 2000, there were 333 people, 156 households, and 102 families residing in the township. the population density was 7.8 people per square mile (3.0/kmÂ²). there were 647 housing units at an average density of 15.1/sq&nbsp;mi (5.8/kmÂ²). the racial makeup of the township was 99.70% white, and 0.30% from two or more races. there were 156 households out of which 19.9% had children under the age of 18 living with them, 59.6% were married couples living together, 2.6% had a female householder with no husband present, and 34.6% were non-families. 32.1% of all households were made up of individuals and 15.4% had someone living 
Townships_in_Pennsylvania Townships_in_Warren_County,_Pennsylvania