Rossendale and Darwen
Borough constituency for the House of Commons
Boundary of Rossendale and Darwen in North West England
County	Lancashire
Electorate	74,593 (2023)[1]
Major settlements	Darwen, Rawtenstall and Bacup
Current constituency
Created	1983
Member of Parliament	Andy MacNae (Labour)
Seats	One
Created from	Rossendale, Darwen and Heywood & Royton[2]

Rossendale and Darwen is a constituency^{[n 1]} in Lancashire represented in the House of Commons of the UK Parliament since 2024 by Andy MacNae of the Labour Party.^{[n 2]}

Map of current boundaries

1983–1997: The Borough of Rossendale, and the Borough of Blackburn wards of Earcroft, Marsh House, North Turton, Sudell, Sunnyhurst, and Whitehall.

1997–2010: All the wards of the Borough of Rossendale except the Greenfield and Worsley wards, and the Borough of Blackburn wards of Earcroft, Marsh House, North Turton, Sudell, Sunnyhurst, and Whitehall.

2010–2024: The Borough of Rossendale wards of Cribden, Eden, Facit and Shawforth, Goodshaw, Greensclough, Hareholme, Healey and Whitworth, Helmshore, Irwell, Longholme, Stacksteads, and Whitewell, and the Borough of Blackburn with Darwen wards of Earcroft, East Rural, Fernhurst, Marsh House, North Turton with Tockholes, Sudell, Sunnyhurst, and Whitehall.

Darwen Ward Changes At the 2018 local elections the Darwen electoral wards were changed and renamed. They are now known as Darwen West, Darwen East, Darwen South and West Pennine. The parliamentary boundaries also included parts of the new Blackburn South and Lower Darwen, and Ewood wards.

2024–present: Further to the 2023 Periodic Review of Westminster constituencies which came into effect for the 2024 United Kingdom general election, the constituency is composed of the following (as they existed on 1 December 2020):

• The Borough of Blackburn with Darwen wards of: Blackburn South & Lower Darwen; Darwen East; Darwen South; Darwen West; West Pennine.
• The Borough of Rossendale wards of: Cribden; Eden; Facit and Shawforth; Goodshaw; Greensclough; Hareholme; Healey and Whitworth; Helmshore; Irwell; Longholme; Stacksteads; Whitewell.^[3]

Minor changes to align with the revised ward boundaries in Blackburn with Darwen.

The constituency consists of Census Output Areas of two local government districts with similar characteristics: a working population whose income is close to the national average but varying reliance upon social housing in relative terms to the national average.^[4] At the end of 2012 the unemployment rate in the constituency stood as 3.5% of the population claiming jobseekers allowance, compared to the regional average of 4.2%.^[5]

The borough of Rossendale that contributes to the bulk of the population has a 21.5% of its population without a car, whereas this is 30.5% in Blackburn and outside of the seat in Burnley is 32.3%. A relatively high 24% of Rossendale's population were in 2001 without qualifications and a high 25.1% were with level 4 qualifications or above. A higher share, 28.7% of Blackburn's population lacked qualifications, however 19.8% of its population had Level 4 qualifications or above.

In terms of tenure 69.6% of homes are owned outright or on a mortgage as at the 2011 census across the Rossendale district; this compares to a similar 63.7% across Blackburn. Whereas in Ribble Valley to the north 76.6% of homes fall within this category, in Leeds the figure is 58.2% and in Manchester just 37.8%.^[6]

This constituency was created in 1983 and has alternated between the two largest parties' MPs during this time; since 1997 the constituency has been a bellwether of the national result.

Election box candidate with party link

• List of parliamentary constituencies in Lancashire

• Rossendale and Darwen UK Parliament constituency (boundaries April 1997 – April 2010) at MapIt UK
• Rossendale and Darwen UK Parliament constituency (boundaries April 2010 – May 2024) at MapIt UK
• Rossendale and Darwen UK Parliament constituency (boundaries from June 2024) at MapIt UK

53°42′29″N 2°14′24″W / 53.708°N 2.240°W / 53.708; -2.240