1 definition found lanett - U.S. Gazetteer (1990) : Lanett, AL (city, FIPS 41296) Location: 32.86621 N, 85.20512 W Population (1990): 8985 (3694 housing units) Area: 13.0 sq km (land), 0.0 sq km (water) Zip code(s): 36863