| Official Name: | Fairfield Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Franklin |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 15.79 |
| Area Land Sq Mi: | 13.31 |
| Area Water Sq Mi: | 2.49 |
| Population As Of: | 2020 |
| Population Total: | 473 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [1] |
| Elevation M: | 299 |
| Elevation Ft: | 981 |
| Coordinates: | 39.5047°N -84.9722°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-22306[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453285 |
Fairfield Township is one of thirteen townships in Franklin County, Indiana. As of the 2020 census, its population was 473,[3] down from 537 at 2010.[4]
According to the 2010 census, the township has a total area of, of which (or 84.29%) is land and (or 15.77%) is water.[4]
Fairfield Township was established in 1821.[5] Fairfield is a descriptive name referring to the beauty of the countryside.[6]
The Old Franklin United Brethren Church was listed on the National Register of Historic Places in 1995.
The original town was founded in 1815. It was incorporated as a town in 1876.[7] The village, on the East Fork of the Whitewater River, was known for its buggy-making operations in the late 1800s.
Notable natives included author James Maurice Thompson, who wrote "Alice of Old Vincennes." Women's suffrage pioneer Ida Husted Harper was born in Fairfield.
The town was inundated by a federal reservoir project in the late 1960s.
New Fairfield was founded in the early 1970s after construction began on a federal reservoir project in the valley of the East Fork of the Whitewater River.
The town exists on land once owned by Carl Huber and Herschel Klein.
It contains no commerce or government agencies.
(This list is based on USGS data and may include former settlements.)
Fairfield Township residents may obtain a free library card from the Franklin County Public Library District in Brookville.[8]