Millington is a village in Kendall and LaSalle counties in the U.S. state of Illinois. The population was 458 at the 2000 census.
The Kendall County portion of Millington is part of the Chicago–Naperville–Joliet Metropolitan Statistical Area, while the LaSalle County portion is part of the Ottawa–Streator Micropolitan Statistical Area.
Millington is located at 41°33′43″N 88°35′59″W / 41.562020°N 88.599606°W / 41.562020; -88.599606. The village is situated along the boundary between Kendall and LaSalle counties. In the 2000 census, 286 of Millington's 458 residents (62.4%) lived in Kendall County and 172 (37.6%) lived in LaSalle County.