Dumas is located in Moore County. About 14,501 people live here (as of 2020). Between 2010 and 2020, the population declined from 14,691 to 14,501. The region is at 1116 meters above sea level. The area covers about 14.4 square kilometers. There are about 509 streets in Dumas. The postal codes are 79029. The dialing code is 806. Dumas is city in and the county seat of Moore County, Texas, United States. Among other things, Dumas has restaurants, cafés, clothing Stores, schools, hairdressers and dentists. More information at
www.ci.dumas.tx.us.