West Winch is a civil parish in the English county of Norfolk.It covers an area of 8.02 km2 (3.10 sq mi) and had a population of 2,596 in 1,068 households at the 2001 census, the population increasing to 2,734 at the 2011 census.For the purposes of local government, it falls within the district of King's Lynn and West Norfolk.West Winch is situated on the A10 several miles south of the town of King's Lynn.