Fayetteville (/ˈfeɪətˌvɪl/) is the second-largest city in Arkansas, the county seat of Washington County, and the biggest city in Northwest Arkansas. The city is on the outskirts of the Boston Mountains, deep within the Ozarks. Known as Washington until 1829, the city was named after Fayetteville, Tennessee, from which many of the settlers had come. It was incorporated on November 3, 1836, and was rechartered in 1867. The three-county Northwest Arkansas Metropolitan Statistical Area is ranked 102nd in terms of population in the United States with 560,709 in 2021 according to the United States Census Bureau. The city had a population of 95,230 in 2021.