Lower Darwen is a village in Lancashire, England.
It is situated within the BB3 postcode district, which is within the Darwen post town.
BB3 is the only postcode district within the Darwen post town.
The Darwen post town is within the Blackburn postcode area.
Administrative Ward: Fernhurst
Administrative District: Blackburn with Darwen
Country: England
UK Parliament: Rossendale and Darwen
NHS Local Health Authority: North West
NHS Region: North, Midlands and the East