Along the east of the constituency is the more working-class Garnock Valley which comprises Kilbirnie, Beith and Dalry, towns which once specialised in the production of steel and textiles before the industries collapse across the 20th Century.

[6] Throughout the early 20th Century Cunninghame North was a safe Unionist seat at the British Parliament, carried by the Scottish Unionists (and later the Scottish Conservatives) consistently as Bute and Northern Ayrshire from 1918 until the constituency's abolishment in 1983, where the newly established Cunninghame North seat was narrowly won by Conservative John Corrie with a majority of 4.1%.

In 2011 and 2016 Kenneth Gibson managed to build upon his narrow majority, bringing him ahead by 27.3% in 2016 - where the Conservatives marginally overtook the Labour Party into second place in the constituency for the first time since 1983.

The Conservative Party derive most of their support from the affluent resort towns of West Kilbride, Fairlie, Skelmorlie and Largs along the north-west coast of the constituency, as well as from the Isle of Arran, and rural and suburban areas in Garnock Valley.

Dalry, Kilbirnie, Ardrossan and Saltcoats are historically stronger areas for the Labour Party which have since voted SNP.

Additionally, ballot papers carried by boat from the Isle of Arran were damp when they arrived, raising suggestions they may not have been transported securely.