Borough of Allerdale
Shown within Cumbria
Geography
Status:	Borough
Region:	North West England
Admin. County:	Cumbria
Area: - Total	Ranked 13th 1,257.79 km²
Admin. HQ:	Workington
ONS code:	16UB
Demographics
Population: - Total (2002 est.) - Density	Ranked 236th 93,659 74 / km²
Ethnicity:	99.4% White
Politics
Allerdale Borough Council http://www.allerdale.gov.uk/
Leadership:	Leader & Cabinet
Executive:	Labour
MPs:	David Maclean, Tony Cunningham

Allerdale is a local government district and borough in Cumbria, England. Its council is based in Workington.

It was formed on April 1, 1974 by the merger of the urban districts of Workington, Maryport, Cockermouth, Keswick and the rural districts of Dockermouth and Wigton .

The name derives from the ancient region of Allerdale, represented latterly by the two wards of Cumberland, called Allerdale above Derwent and Allerdale below Derwent .