Sigel is an incorporated town in Shelby County, Illinois, United States.

The town was named after Franz Sigel, (1824–1902), a Union general in the American Civil War.

[6] As of the census[8] of 2000, there were 386 people, 141 households, and 97 families residing in the town.

There were 154 housing units at an average density of 563.2 per square mile (217.5/km2).

29.8% of all households were made up of individuals, and 14.2% had someone living alone who was 65 years of age or older.