Ayrshire (Scottish Gaelic: Siorrachd Inbhir Àir, pronounced [ˈʃirˠəxk iɲiˈɾʲaːɾʲ]) is a historic county and registration county in south-west Scotland, located on the shores of the Firth of Clyde. Its principal towns include Ayr, Kilmarnock and Irvine and it borders the counties of Renfrewshire and Lanarkshire to the north-east, Dumfriesshire to the south-east, and Kirkcudbrightshire and Wigtownshire to the south. Like many other counties of Scotland it currently has no administrative function, instead being sub-divided into the council areas of North Ayrshire, South Ayrshire and East Ayrshire. It has a population of approximately 366,800.