Ilkeston is a town in the Borough of Erewash, Derbyshire, England, on the River Erewash, from which the borough takes its name, with a population at the 2011 census of 38,640. Its major industries, coal mining, iron working and lace making/textiles, have now all but disappeared.

Erewash is a local government district with borough status in Derbyshire, England. The borough is named after the River Erewash. The council has offices in both the borough's towns of Ilkeston and Long Eaton. The borough also includes several villages and surrounding rural areas. Some of the built-up areas in the east of the borough form part of the Nottingham Urban Area.