Marshall is a city in and the county seat of Harrison County in the northeastern corner of the U.S. state of Texas. Marshall is a major cultural and educational center in East Texas and the tri-state area. At the 2010 census, the population of Marshall was about 23,523. Marshall is also referred to by various nicknames; the Cultural Capital of East Texas, the Gateway of Texas, the Athens of Texas, the City of Seven Flags and Center Stage, a branding slogan adopted by the Marshall Convention and Visitors Bureau.