Fremont Township is one of sixteen townships in Butler County, Iowa, USA. As of the 2000 census, its population was 382.
Fremont Township covers an area of 36.78 square miles (95.3 km2) and contains no incorporated settlements. According to the USGS, it contains two cemeteries: Pleasant Hill and Pleasant Valley.
- ^ "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.