Jerome is a village in Sangamon County, Illinois, United States.

[2] According to the 2010 census, Jerome has a total area of 0.45 square miles (1.17 km2), all land.

There were 727 housing units at an average density of 1,957.2 per square mile (755.7/km2).

39.1% of all households were made up of individuals, and 15.5% had someone living alone who was 65 years of age or older.

SMTD provides bus service on Routes 8, 13, 15, 16 and 903 connecting Jerome to downtown Springfield and other destinations.