Waco (/ ˈ w eɪ k oʊ / WAY-koh) is the county seat of McLennan County, Texas, United States. It is situated along the Brazos River and I-35, halfway between Dallas and Austin.The city had a 2010 population of 124,805, making it the 22nd-most populous city in the state. The 2021 U.S. Census population estimate for the city was 139,594. The Waco metropolitan statistical area consists of …

