1 definition found fishkill - U.S. Gazetteer (1990) : Fishkill, NY (village, FIPS 25967) Location: 41.53455 N, 73.89416 W Population (1990): 1957 (1057 housing units) Area: 2.3 sq km (land), 0.0 sq km (water) Zip code(s): 12524