1 definition found blandinsville - U.S. Gazetteer (1990) : Blandinsville, IL (village, FIPS 6470) Location: 40.55473 N, 90.86937 W Population (1990): 762 (381 housing units) Area: 2.3 sq km (land), 0.0 sq km (water) Zip code(s): 61420