Jackson Township is six-miles by six-miles square with 36 sections of land and is one of 17 towns in Adams County.

In 2000 the population was 926. The land is approximately 41% woodlands, about 4% ponds, lakes, streams and wetlands, 41% agricultural and about 8.5% residential. Of the 951 houses in the township, approximately 521 are in seasonal or weekend use.