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.
Driving distance from Huntsville, AL to Chattanooga, TN. The total driving distance from Huntsville, AL to Chattanooga, TN is 102 miles or 164 kilometers. Your trip begins in Huntsville, Alabama. It ends in Chattanooga, Tennessee. If you are planning a road trip, you might also want to calculate the total driving time from Huntsville, AL to Chattanooga, TN so you can see when you'll arrive at your destination.