Swainsthorpe is a village in Norfolk, England. It lies on the A140 road, approximately 5 miles south of Norwich, and just north of Newton Flotman. It covers an area of 3.38 km2 (1.31 sq mi) and had a population of 374 in 159 households at the 2001 census, the population reducing to 360 at the 2011 Census. The village had two Churches, St.Peter's and St. Mary's, the latter is now in ruins.