The Top Ten Orkney Surnames 1841 - 1911
1841
Sinclair(906)
Flett(759)
Spence(633)
Muir(479)
Rendall(473)
Johnston(468)
Miller(468)
Scott(462)
Thomson(459)
Smith(438)
Total Population in 184130434
1851
Sinclair(942)
Flett(735)
Spence(648)
Muir(522)
Rendall(513)
Miller(504)
Thomson(500)
Johnston(493)
Scott(476)
Drever(469)
Total Population in 185131309
1861
Sinclair(967)
Flett(650)
Spence(616)
Muir(569)
Thomson(540)
Rendall(519)
Scott(509)
Johnston(508)
Miller(475)
Smith(465)
Total Population in 186132339
1871
Sinclair(957)
Flett(558)
Johnston(550)
Thomson(550)
Spence(539)
Muir(530)
Rendall(515)
Tulloch(487)
Scott(474)
Drever(463)
Total Population in 187131191
1881
Sinclair(1002)
Thomson(568)
Spence(552)
Johnston(543)
Muir(543)
Flett(527)
Scott(524)
Rendall(523)
Drever(502)
Tulloch(491)
Total Population in 188131970
1891
Sinclair(1019)
Spence(538)
Johnston(514)
Muir(503)
Flett(502)
Rendall(501)
Thomson(477)
Scott(472)
Drever(471)
Tulloch(451)
Total Population in 189130174
1901
Sinclair(922)
Spence(491)
Johnston(489)
Rendall(479)
Muir(465)
Flett(443)
Thomson(442)
Tulloch(439)
Sutherland(424)
Drever(419)
Total Population in 190127731
1911
Sinclair(838)
Rendall(491)
Johnston(466)
Flett(445)
Thomson(416)
Tulloch(412)
Sutherland(411)
Spence(399)
Muir(396)
Drever(371)
Total Population in 1911 25729
The surnames include minor variations