1 definition found fairbank - U.S. Gazetteer (1990) : Fairbank, IA (city, FIPS 26355) Location: 42.63885 N, 92.05012 W Population (1990): 1018 (408 housing units) Area: 1.2 sq km (land), 0.0 sq km (water) Zip code(s): 50629