Charlottesville, Indiana is an unincorporated community mostly in Hancock County with a small portion to the south in the more rural Rush County.
From a visit in 2010, the post office is

Charlottesville, Indiana.
located on the right. and fronts on the West bound US 40 highway.
Now, Charlottesville, 2025 population of 472, continues to not be a town as there’s no mayor, no elected officials, but just a village platted out in 1830 that stopped being a town in 1867. With a median age of 60, average household income $66,163 and a poverty rate of 0% this is a very unusual Midwest location.
Returning this past year to discover a bit of clean-up.

Charlottesville, Indiana. ca 2025