1 definition found heyburn - U.S. Gazetteer (1990) : Heyburn, ID (city, FIPS 37360) Location: 42.55579 N, 113.76094 W Population (1990): 2714 (904 housing units) Area: 3.5 sq km (land), 0.0 sq km (water) Zip code(s): 83336