West Deerfield Township is located in Lake County, Illinois.

[1] West Deerfield Township was formed from former Deerfield Township (now Moraine Township) in 1888.

Walgreens has its corporate headquarters in Deerfield within West Deerfield Township.

[2][3] In 1987 Walgreens employed about 1,100 people at its headquarters, which was at the time in an unincorporated area on the west side of Deerfield.

[4][5] As of 2000 the Walgreens headquarters was still in an unincorporated area in West Deerfield Township.