Theres an 'Owners of Land 1873' list out there - presumably compiled from the 1871 census - dont think its online, but I have seen copies (by county) on EBay ....
Return of Owners of Land 1873
The Return of Owners of Land arose from the question put in the House of Lords on 19 February 1872 by the Earl of Derby to the Lord Privy Seal "whether it was the intention of Her Majesty's Government to take any steps for ascertaining the number of proprietors of land and houses in the United Kingdom, with the quantity of land owned by each proprietor?". It was prepared by the Local Government Board, and published in 1875 as The Return of Owners of Land, 1873. The Return shows the holding, in acres roods and square poles, and estimated yearly rental, of all holdings over 1 acre.