Cotmanhay is a village in Derbyshire, England.
It is situated within the DE7 postcode district, which is within the Ilkeston post town.
DE7 is the only postcode district within the Ilkeston post town.
The Ilkeston post town is within the Derby postcode area.
Administrative Ward: Cotmanhay
Administrative District: Erewash
Administrative County: Derbyshire
Country: England
UK Parliament: Erewash
NHS Local Health Authority: East Midlands
NHS Region: North, Midlands and the East