1 definition found upton-west upton - U.S. Gazetteer (1990) : Upton-West Upton, MA (CDP, FIPS 71530) Location: 42.17372 N, 71.61020 W Population (1990): 2347 (1007 housing units) Area: 6.4 sq km (land), 0.2 sq km (water)