The Northwest Arkansas region consists of three Arkansas counties: Benton, Madison, and Washington. The area had a population of 347,045 at the 2000 census which had increased to 463,204 by the 2010 Census (an increase of 33.47 percent). The region does not consist of the usual principal-city-with-suburbs morphology. The principal cities retain individual identities, but have grown together along Interstate 49 (I-49). For more than the last decade, Northwest Arkansas has been one of the fastest-growing regions in the United States.
The Northwest Arkansas region consists of three Arkansas counties: Benton, Madison, and Washington. The area had a population of 347,045 at the 2000 census which had increased to 463204 by the 2010 Census (an increase of 33.47 percent). The region does not consist of the usual principal-city-with-suburbs morphology. The principal cities retain individual identities, but have grown together along Interstate 49 (I-49). For more than the last decade Northwest Arkansas has been one of the fastest-growing regions in the United States