Euless is a city in Tarrant County, Texas, United States, and a suburb of Dallas and Fort Worth. Euless is part of the Mid-Cities region between Dallas and Fort Worth. In 2020 Census, the population of Euless was 61,032. The population of the city increased by 19.02% in 10 years. The city's population was 51,277 as of the 2010 census.

Tarrant County is a county located in the U.S. state of Texas with a 2020 U.S. census population of 2,110,640, making it the third-most populous county in Texas and the 15th-most populous in the United States. Its county seat is Fort Worth. Tarrant County, one of 26 counties created out of the Peters Colony, was established in 1849 and organized the next year. It is named after Edward H. Tarrant, a lawyer, politician, and militia leader.