Marshall is located in Harrison County. About 23,392 people live here (as of 2020). Between 2010 and 2020, the population declined from 23,523 to 23,392. The region is at 126 meters above sea level. The area covers about 76.8 square kilometers. There are about 1.263 streets in Marshall. The region was founded in 1841. The postal codes are 75670–75672. The dialing code is 903. Marshall is small city and county seat of Harrison County, Texas, United States. Among other things, Marshall has public Transport, restaurants, cafés, supermarkets, museums and schools. More information at
www.marshalltexas.net.