^ 1.01.1Area and population ranks: there are 约300 islands over 20 ha in extent and 93 permanently inhabited islands were listed in the 2011 census.
^ 2.02.1Statistical Bulletin: 2011 Census: First Results on Population and Household Estimates for Scotland - Release 1C (Part Two). "Appendix 2: Population and households on Scotland’s inhabited islands".
^Anderson, Joseph (Ed.) (1893) Orkneyinga Saga. Translated by Jón A. Hjaltalin & Gilbert Goudie. Edinburgh. James Thin and Mercat Press (1990 reprint). ISBN 0-901824-25-9