Fulletby is a village and a civil parish in the East Lindsey district of Lincolnshire, England. It is situated in the Lincolnshire Wolds, and 3 mi north-east from Horncastle, 9 mi south from Louth, and 8 mi north-west from Spilsby. The parish covers approximately 1950 acre . At the time of the 2011 census the population remained less than 100 and is included in the civil parish of Low Toynton.
Low Toynton encompasses Horncastle.
Whether or not Horncastle is included in Low Toynton is not discernible from the statement alone.