Kirkby on Bain is a village in Lincolnshire, England.
It is situated within the LN10 postcode district, which is within the Woodhall Spa post town.
LN10 is the only postcode district within the Woodhall Spa post town.
The Woodhall Spa post town is within the Lincoln postcode area.
Administrative Ward: Woodhall Spa
Administrative District: East Lindsey
Administrative County: Lincolnshire
Country: England
UK Parliament: Louth and Horncastle
NHS Local Health Authority: East Midlands
NHS Region: North, Midlands and the East