1 definition found leadwood - U.S. Gazetteer (1990) : Leadwood, MO (city, FIPS 41078) Location: 37.86225 N, 90.58935 W Population (1990): 1247 (506 housing units) Area: 3.0 sq km (land), 0.0 sq km (water) Zip code(s): 63653