This guide is divided into three sections and is based on the drug classification system developed nearly 20. years ago by Paul H. Earley, M.D. and later upon by Bruce Merkin, M.D. and his associates, then at Glenbeigh.
Sponsored Topics. Rockwell City is a city in Calhoun County, Iowa, United States. The population was 2,264 at the 2000 census. It is the county seat of Calhoun County. Rockwell City is located at 42Â°23â²45â³N 94Â°37â²59â³W / 42.39583Â°N 94.63306Â°W / 42.39583; -94.63306 (42.395906, -94.632946).
City of Rockwell City, IA Zip Codes. City of Rockwell City, IA Demographic Information. * Demographic data is based on information taken from the 2000 Census. City of Rockwell City, IA covers 2 Area Codes. City of Rockwell City, IA covers 1 Zip Code. 10 Cities within 15 Miles of the City of Rockwell City, IA.