Aunsby and Dembleby is a civil parish in the North Kesteven district of Lincolnshire, England. According to the 2001 Census it had a population of 125. The parish includes Aunsby and Dembleby, which were separate parishes until 1931, and the hamlet of Scott Willoughby.

The A15 is a major road in England. It runs north from Peterborough via Market Deeping, Bourne, Sleaford and Lincoln along a variety of ancient, Roman, and Turnpike alignments before it is interrupted at its junction with the M180 near Scawby. The road restarts 10 miles (16 km) east, and then continues north past Barton-upon-Humber, crossing the Humber on the Humber Bridge before terminating at Hessle near Kingston upon Hull.