Momence is a city and capital of Momence Township, Kankakee County, Illinois, United States. The population was 3,171 at the 2000 census, and 3,310 in 2010. It is part of the Kankakee–Bradley Metropolitan Statistical Area.

Momence Township is one of seventeen townships in Kankakee County, Illinois, USA. As of the 2010 census, its population was 3,820 and it contained 1,655 housing units. Momence Township is one of the original six townships of Kankakee County, Illinois; when first created the township encompassed land now in Sumner, Ganeer, and Pembroke Townships. It was a township of Will County until Kankakee County was created.