1 definition found cannon falls - U.S. Gazetteer (1990) : Cannon Falls, MN (city, FIPS 9730) Location: 44.51650 N, 92.90262 W Population (1990): 3232 (1282 housing units) Area: 8.8 sq km (land), 0.2 sq km (water) Zip code(s): 55009