[2] Colfax is Township 18 North, Range 7 East of the Third Principal Meridian.

[3] Blue Mound, a glacial kame in Section 7, is the highest point in the township.

A pole barn and a few trees are all that remain of the farmstead that once occupied the site.

As of the 2020 census[1] there were 219 people, 37 households, and 6 families residing in the township.

83.80% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older.