[3] According to the United States Census Bureau, Ashland Township has a total area of 37.4 square miles (97 km2), all land.

An 1894 Dodge County plat map showed a village of Ashland in Section 22 of the township (T106N, R17W), but by 1966 it had disappeared from USGS maps, leaving only Vlasaty, a point on the Chicago Great Western Railway, both of which have since then also disappeared.

As of the census[1] of 2000, there were 367 people, 123 households, and 101 families residing in the township.

There were 130 housing units at an average density of 3.5 per square mile (1.4/km2).

12.2% of all households were made up of individuals, and 4.9% had someone living alone who was 65 years of age or older.