The original census returns are at the National Archives (TNA).  Click on the links to access transcripts:

• 1841 Census on 6 June. TNA reference: HO107/294/6, folios 24b-25a, pages 43-44
• 1851 Census on 30 March. TNA reference: HO107/1858, folios 87b-89a, pages 35-38
• 1861 Census on 7 April. TNA reference: RG9/1353, folios 60a-61a, pages 45-47
• 1871 Census on 2 April. TNA reference: RG10/2009, folios 49a-50b, pages 21-24
• 1881 Census on 3 April. TNA reference: RG11/2110, folios 40a-41b, pages 7-10
• 1891 Census on 5 April. TNA reference: RG12/1652, folios 44a-44b, pages 31-32
• 1901 Census on 31 March. TNA reference: RG13/2002, folios 9b-10a, pages 10-11
• 1911 Census on 2 April. TNA reference: RG14/12384, schedule no. 35A, pages 1-3 and schedule no. 36A, page 1