Resident Population of Municipalities by County 1980, 1990 & 2000.
Driving distance from Huntsville, AL to Decatur, AL. The total driving distance from Huntsville, AL to Decatur, AL is 26 miles or 42 kilometers. Your trip begins in Huntsville, Alabama. It ends in Decatur, Alabama.
The total driving time is 3 hours, 31 minutes. Your trip begins in Huntsville, Alabama. It ends in Atlanta, Georgia. If you're planning a road trip, you might be interested in seeing the total driving distance from Huntsville, AL to Atlanta, GA.