| Official Name: | Winfield Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Lake |
| Government Type: | Indiana township |
| Established Title: | founded |
| Established Date: | 1843 |
| Area Total Sq Mi: | 25.06 |
| Area Land Sq Mi: | 24.74 |
| Area Water Sq Mi: | 0.32 |
| Population As Of: | 2010 |
| Population Total: | 10054 |
| Population Density Sq Mi: | 406.3 |
| Elevation Footnotes: | [1] |
| Elevation M: | 222 |
| Elevation Ft: | 728 |
| Coordinates: | 41.3872°N -87.2533°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-84896[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 454062 |
Winfield Township is one of eleven townships in Lake County, Indiana. As of the 2010 census, its population was 10,054 and it contained 3,576 housing units.[3]
Winfield Township was established in 1843, and named for Winfield Scott.[4]
The John Ross Farm was listed in the National Register of Historic Places in 1996.
According to the 2010 census, the township has a total area of, of which (or 98.72%) is land and (or 1.28%) is water.[3]
Winfield Township residents are eligible to obtain a free library card from the Crown Point Community Public Library in Crown Point or Winfield.[5]
Winfield Township, along with Center Township, is served by the Crown Point Community School Corporation which includes Crown Point High School.