On January 15, 1836, Pine Run Post Office was opened and renamed and move to Thetford on December 26, 1844.

[8][9] A new Pinerun, or Pine Run, Post Office was opened on January 26, 1852.

As of the census[1] of 2000, there were 13,108 people, 4,926 households, and 3,669 families residing in the township.

20.7% of all households were made up of individuals, and 6.9% had someone living alone who was 65 years of age or older.

[11] Vienna Township is part of the following:[12] Educational services are primarily provided by Clio Area School District while small parts of the township are served by Birch Run Area School District and Mt.