I've not visited it yet but this site has
"details of 28,600 Devonians from the 1840s"
Friends of Devon's Archives
"The information comes from Tithe Apportionments, documents which recorded the intricate details for what was a church tax and which became increasingly unpopular in the non-conformist parts of Devon.
....
Landowners, their occupiers, lessees, the name of the land holding and the acreage are listed."
Teignmouth Gazette/News article by John Balment on 29/08/09
EDIT - I've been to the site now and it's great - everything it says it is - it shows who rented what to whom at the time. Very interesting to see the family links.