In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described West Blatchington like this:
BLATCHINGTON, or Bletchington (West), a parish in Steyning district, Sussex; near the South Coast railway, 2 ½ miles NW of Brighton. Post Town, Brighton. Acres, 876. Real property, £805. Pop., 59. Houses, 10. The living is a rectory, annexed to the vicarage of Brighton, in the diocese of Chichester.
West Blatchington is now part of Brighton and Hove district. Click here for graphs and data of how Brighton and Hove has changed over two centuries. For statistics about West Blatchington itself, go to Units and Statistics.
GB Historical GIS / University of Portsmouth, History of West Blatchington, in Brighton and Hove and Sussex | Map and description, A Vision of Britain through Time.
Date accessed: 27th April 2017
Click here for more detailed advice on finding places within A Vision of Britain through Time , and maybe some references to other places called " West Blatchington ".