1 definition found earlton - U.S. Gazetteer (1990) : Earlton, KS (city, FIPS 19275) Location: 37.58731 N, 95.46921 W Population (1990): 69 (29 housing units) Area: 0.3 sq km (land), 0.0 sq km (water) Earlton, NY Zip code(s): 12058