| Official Name: | Penn Township |
| Settlement Type: | Township |
| Mapsize: | 290px |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | St. Joseph |
| Government Type: | Indiana township |
| Area Total Km2: | 164.67 |
| Area Land Km2: | 161.86 |
| Area Water Km2: | 2.81 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 63.58 |
| Area Land Sq Mi: | 62.5 |
| Area Water Sq Mi: | 1.08 |
| Area Water Percent: | 1.71 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 68698 |
| Population Density Km2: | 397.4 |
| Population Density Sq Mi: | 1029.2 |
| Elevation Footnotes: | [2] |
| Elevation M: | 225 |
| Elevation Ft: | 738 |
| Coordinates: | 41.6458°N -86.1344°W |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 46544, 46545, 46561, 46613, 46614 |
| Area Code: | 574 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 453714 |
Penn Township is one of thirteen townships in St. Joseph County, in the U.S. state of Indiana.[3] As of the 2000 census, its population was 64,322.[4]
Penn Township was formed in 1832.[5]
The Mishawaka Reservoir Caretaker's Residence was listed on the National Register of Historic Places in 1998.
According to the United States Census Bureau, Penn Township covers an area of ; of this, (98.29 percent) is land and (1.71 percent) is water.
(This list is based on USGS data and may include former settlements.)
The township contains these seven cemeteries: Chapel Hill Memorial Gardens, Eutzler, Fairview, Ferrisville, Pleasant Valley, Saint Josephs and Saint Josephs.
Penn Township residents may obtain a free library card from any branch of the Mishawaka-Penn-Harris Public Library system.[6]