Huntsville–Decatur-Albertville combined statistical area

Huntsville Metropolitan Area
Huntsville Metropolitan Area
Combined Statistical Area
	Huntsville–Decatur–Albertville, AL; Combined Statistical Area
	U.S. Space & Rocket Center in Huntsville
Map of Huntsville–Decatur–Albertville, AL–TN CSA	Huntsville metropolitan area Decatur metropolitan area Albertville micropolitan area Fort Payne micropolitan area Fayetteville micropolitan area City of Huntsville City of Decatur
	Huntsville metropolitan area Decatur metropolitan area Albertville micropolitan area Fort Payne micropolitan area Fayetteville micropolitan area City of Huntsville City of Decatur
	Coordinates: 34°39′00″N 86°47′13″W / 34.650°N 86.787°W
Country	United States
State	Alabama; Tennessee
Metro areas	Huntsville Metropolitan Area; Decatur Metropolitan Area; Albertville Micropolitan Area; Fort Payne Micropolitan Area; Fayetteville Micropolitan Area;
Core cities	Huntsville; Decatur; Albertville;
Constituent counties	DeKalb, Lawrence, Limestone, Lincoln, Madison, Marshall, Morgan
Area
• Total	12,200 km2 (4,710 sq mi)
• Land	11,770 km2 (4,545 sq mi)
• Water	420 km2 (164 sq mi)
Population
• Total	852,756
Time zone	UTC-6 (CST)
• Summer (DST)	UTC-5 (CDT)

The Huntsville–Decatur–Albertville combined statistical area is the most populated sub-region of North Alabama, and is the second largest combined statistical area in the State of Alabama after Birmingham. The Huntsville-Decatur-Albertville CSA had a total of 913,977 people in 2024 and ranks 68th in the country.

The CSA is situated along the Tennessee River, and is made up of two separate metropolitan areas (Decatur and Huntsville) and 3 Micropolitan areas (Albertville, Fort Payne, and Fayetteville) that are usually referred to as one. The Decatur MSA, Albertville μSA, and Fort Payne μSA are south of the Tennessee River and the Huntsville MSA and Fayetteville μSA are north of it.

Significant cities included in the CSA include Albertville, Arab, Athens, Boaz, Decatur, Fayetteville, Fort Payne, Guntersville, Hartselle, Huntsville, and Madison, as well as DeKalb, Lawrence, Limestone, Lincoln, Madison, Marshall, and Morgan counties.

Huntsville is the largest city in the area with a population of 215,006 people, and a metro population of 502,728. Decatur is the second largest city with a population of 57,938 people, and a metro population of 156,758. Mooresville is the smallest town in the CSA with 47 people.