Cromartyshire is a historic county in the Highlands of Scotland, comprising the medieval "old shire" around the county town of Cromarty and 22 exclaves transferred from Ross-shire in the late 17th century. The largest part, six times the size of the old shire, is Coigach, northwest from Ullapool. In 1890, Cromartyshire was merged with Ross-shire into the administrative county of Ross and Cromarty. In 1974 the county was combined with Caithness, Inverness-shire, Nairnshire, Sutherland, and parts of Argyllshire and Morayshire to form the Highland council area.