| Official Name: | Oswego Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Kendall County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Kendall County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Kendall |
| Established Title: | Established |
| Area Total Sq Mi: | 40.58 |
| Area Land Sq Mi: | 39.94 |
| Area Water Sq Mi: | 0.64 |
| Area Water Percent: | 1.58 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 1273.5 |
| Elevation Footnotes: | [1] |
| Elevation M: | 202 |
| Elevation Ft: | 663 |
| Coordinates: | 41.6814°N -88.3225°W |
| Blank Name: | FIPS code |
| Blank Info: | 17-093-56900 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0429511 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [2] |
| Population Est: | 56076 |
| Unit Pref: | Imperial |
Oswego Township occupies the 6-mile-square-plus additional land to the south of the Fox River in northeast corner of Kendall County, Illinois. As of the 2010 census, its population was 50,870 and it contained 17,914 housing units.[3]
According to the 2010 census, the township has a total area of, of which (or 98.42%) is land and (or 1.58%) is water.[3]
U.S. Route 30 and U.S. Route 34 run east to west through the township, as well as IL 25, IL 31 and IL 71. Today, the township has become predominantly a suburb of Chicago.
The township is governed by an elected Town Board of a Supervisor and four Trustees. It also has an elected Assessor, Clerk, Highway Commissioner and Supervisor. The Township Office is located at 84 Templeton Drive, Suite 104 Oswego, IL 60543