The Decatur, Alabama Metropolitan Statistical Area is a moderately urban region of North-Central Alabama. The 2020 Census put the population of the metropolitan area at 152,740, of which one-third resides within the boundaries of its core city, Decatur, Alabama, It is also considered to be part of the North, Northwest, and North-Central regions of Alabama. The metropolitan area is the combined area of the City of Decatur and the surrounding areas in suburban, rural, and more developed parts of Morgan and Lawrence Counties. The Decatur Metropolitan Area is a part of the Huntsville-Decatur CSA, With Huntsville and Madison being other Principal cities in the CSA.

Cities and towns

Principal cities

Other cities and towns

Unincorporated communities

Transportation

Major highways