Saline, Jefferson, Thayer, Nuckolls and Clay counties. Each township is made up of 36 sections. The county seat is Geneva which is located in the center of the county. There are few natural waterways in Fillmore County. The predominant waterways are the West blue River which flows along the northern boundary from the NW corner.
Turkey Creek flows across Fillmore County from west to east in the central part of the county.
Indian Creek flows across the northe easter part and School Creek across the northwestern part of the county. Most of the topography of the county is upland prairie with very narrow valleys arising from the waterways. In its native state there was very little timber in this part of the state. Many of the homesteaders helped by planting trees as part of the Timber Act which granted people 80 acres if they would plant trees on the land. Due to the cultivation of timber in this region many additional bird species migrated into the area.