Incholm is the only island in the Firth with a recent resident population, of whom there were two in the 2001 census although there was no usually resident population recorded at the time of the 2011 census. There is a resident custodian employed by Historic Scotland who maintains the island and runs the shop during the summer. In the 14th century John of Fordun records the name as "Euomonia" (referring to the "monasterium Sancti Columbe in insula Euomonia"). There are various skerries in the sea to the north including Swallow Craig, Car Craig, Meadulse and Craigdimas.