At the 2016 elections, Unionist parties totalled 22,128 votes which was 6,749 more votes than the nationalist parties.
At the 2021 election, if everyone tactically voted for CONSERVATIVE, it would remove the SNP from the Constituency
Ayr is a burgh constituency of the Scottish Parliament (Holyrood) which elects one Member of the Scottish Parliament (MSP) via the plurality (first past the post) electoral system. The review suggested that the Ayr constituency takes in the electoral wards of: Troon, Prestwick, Ayr North, Ayr East and Ayr West, covering the towns of Ayr, Prestwick and Troon.
South Scotland is one of the eight electoral regions of the Scottish Parliament. Nine of the parliament's 73 first past the post constituencies are sub-divisions of the region and it elects seven of the 56 additional-member Members of the Scottish Parliament (MSPs). Thus it elects a total of 16 MSPs.
Following the First Periodic Review of Scottish Parliament Boundaries in time for the 2011 Scottish Parliament election the Boundary Commission for Scotland recommended alterations to the existing Ayr constituency which were then implemented and used at the 2011 and 2016 Scottish Parliamentary elections. These boundaries remain in place today and will be used at the next election to the Scottish Parliament. The review suggested that the Ayr constituency takes in the electoral wards of: Troon, Prestwick, Ayr North, Ayr East and Ayr West, covering the towns of Ayr, Prestwick and Troon. All remaining wards in South Ayrshire form part of the Carrick, Cumnock and Doon Valley constituency.