Broken Arrow is a city in Tulsa and Wagoner counties in the U.S. state of Oklahoma. It is the largest suburb of Tulsa. According to the 2020 census, Broken Arrow has a population of 113,540 residents and is the 4th most populous city in the state. The city is part of the Tulsa Metropolitan Area, which has a population of 1,023,988 residents. The Missouri–Kansas–Texas Railroad sold lots for the town site in 1902 and company secretary William S. Fears named it Broken Arrow.