Emardville Township was named for Pierre Emard, a pioneer settler.

[3] According to the United States Census Bureau, the township has a total area of 45.6 square miles (118 km2), all land.

There were 95 housing units at an average density of 2.1 per square mile (0.81/km2).

28.4% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

About 18.0% of families and 18.7% of the population were below the poverty line, including 26.2% of those under the age of eighteen and 5.7% of those 65 or over.