Polk Township is one of fourteen townships in Bremer County, Iowa, USA.

[3] Polk Township covers an area of 36.75 square miles (95.2 km2) and contains one incorporated settlement, Plainfield.

The hamlet of Horton is situated southeast of the intersection of 140th Street (State Route 188) and Easton Avenue.

According to the USGS, Polk Township contains three cemeteries: Horton, Jackson and Willow Lawn.

This article about the geography of Bremer County, Iowa is a stub.