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.
Huntsville, Alabama is GMT/UTC - 6h during Standard Time Huntsville, Alabama is GMT/UTC - 5h during Daylight Saving Time.