1 definition found dierks - U.S. Gazetteer (1990) : Dierks, AR (city, FIPS 18970) Location: 34.12058 N, 94.01877 W Population (1990): 1263 (529 housing units) Area: 4.8 sq km (land), 0.0 sq km (water) Zip code(s): 71833