| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Freeport Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Stephenson |
| Leader Title: | Supervisor |
| Leader Name: | Patrick Sellers |
| Area Total Sq Mi: | 11.79 |
| Area Land Sq Mi: | 11.78 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.08 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 2177 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 42.2903°N -89.6347°W |
| Elevation Ft: | 807 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 24392 |
| Blank Name: | FIPS code |
| Blank Info: | 17-177-27897 |
Freeport Township is located in Stephenson County, Illinois. As of the 2010 census, its population was 25,638 and it contained 12,396 housing units.[2] Freeport Township is coterminous with City of Freeport. It is one of seventeen coterminous townships in Illinois.[3]
According to the 2010 census, the township has a total area of, of which (or 99.92%) is land and (or 0.08%) is water.[2]
The Mansion House hotel on Walnut Street and Spring Streets in Freeport was built by Benjamin Goddard in 1838. It was an official stage stop on the Old State Road number 2, now Business U.S. Route 20, for the Frink, Walker & Company stage line Chicago to Galena 1839–1854. The building is no longer standing.[4]