There's more than one place called Huntsville: Canada Huntsville (Ontario) - in the Muskoka district of Central Ontario United States of America Huntsville (Alabama) - in Madison County (Alabama), in the Mountains (Alabama) region of Alabama Huntsville (Arkansas) - in Madison County (Arkansas), in the Ozarks (Arkansas) region of Arkansas Huntsville (Texas) - in Walker County, in the Piney Woods region of Texas