Union Prairie Township is one of eighteen townships in Allamakee County, Iowa, USA.

[3] Union Prairie Township was organized in 1852.

[4] Union Prairie Township covers an area of 35.4 square miles (92 km2) and contains no incorporated settlements.

According to the USGS, it contains three cemeteries: Eells Plot, Mount Olivet and West Ridge.

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