Grafton is a city in Worth County, Iowa, United States. The population was 252 in the 2010 census, a decrease of 13.1% from the 290 population in the 2000 census. It is part of the Mason City Micropolitan Statistical Area.
Get Local Bank Rankings
Enter your location and we'll show you branch locations in your area, as well as customized rankings to help you find the right bank for you.