According to the
United States Census Bureau, Eureka Township covers an area of 35.59 square miles (92.19 square kilometers); of this, 0.05 square miles (0.13 square kilometers) or 0.14 percent is water.
Cities •
Fontanelle Extinct towns •
Berea Cemeteries The township contains one cemetery, Eureka.
Major highways •
Iowa Highway 92 Lakes • Nodaway Lake
Landmarks • Ken Sidey Nature Area County Park • Nodaway Park ==School districts==