Geography
According to the 2010 census, the township has a total area of , of which (or 99.09%) is land and (or 0.91%) is water.Demography
Per 2020 data, 8.3% of the population is aged 18–24; 29.1% aged 25–44; 21.4% aged 45–64 and 20.5% aged 65+. Of this, 38.0% of the population is Protestant, 1.7% Catholic, 1.0% Mormon, and 59.3% unaffiliated. Education 39.7% of residents in Vienna township, Indiana have earned a Bachelor's degree or higher, with 33.0% of the residents holding a STEM (Science, Technology, Engineering, Mathematics) degrees. 41.2% of residents hold some high school graduate degree (including equivalency).Cities and towns
* ScottsburgUnincorporated towns
* Marshfield *References
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