Swing Plot 1983-1987

The chart below shows the swings recorded in each of the 19 mainland regions between the 1983 and 1987 elections. Each region is represented by one point. The x co-ordinate of the point is the swing to or against the Conservatives, the y co-ordinate is the swing to or against the Labour party. A positive number represents a swing towards, and a negative number a swing against.

Election Swing Plot 1983-1987

Labour gains in every region and particularly in Scotland, Wales and the north of England. The Conservatives lose some support in those areas but also gain support in and around London. This regional polarisation means that the Uniform National Swing assumption did work very well this period, with the gap between the most extreme regions (West Scotland and North London) being over 7% swing difference for both major parties.

We can also see the data in tabular form:

Region 1983 Election 1987 Election Swing
CON%LAB%CON%LAB%CON%LAB%
East Scotland31.327.927.334.0-3.96.1
West Scotland25.442.520.651.3-4.88.8
North34.640.232.346.4-2.36.2
Lancashire41.434.837.541.0-3.96.2
Greater Manchester36.239.735.944.0-0.24.4
Yorkshire42.030.941.835.3-0.24.4
Humberside38.335.636.541.3-1.85.7
West Midlands41.737.442.639.80.92.4
East Midlands46.230.047.531.91.41.9
Severn47.226.646.829.5-0.52.9
Wales31.037.529.545.1-1.57.5
East Anglia50.621.852.423.11.81.3
Essex52.317.554.018.61.71.0
West49.519.550.321.00.81.5
North London41.833.044.834.43.01.4
South London45.826.847.828.62.01.8
South West53.310.651.412.3-1.91.7
South56.013.357.113.61.10.3
South East56.415.256.416.50.01.3
Total43.528.343.331.5-0.23.3

Details of the regions' makeup can be seen here.