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Carrollton is a city in Denton County, Dallas County and Collin County in the U.S. state of Texas. As of 2005, census estimates the city's total population to be 122,699. Carrollton is a suburb of Dallas. The city of Carrollton has been named to America's 2006 Top 100 Places to Live for 2006 by Relocate America.
Carrollton is a city in Denton County, Dallas County and Collin County, Texas.As of the 2010 census, its population was 119,097 making it the twenty-third most populous city in Texas. It is a suburb of Dallas and in 2006 was named to America's Top 100 Places to Live by Relocate America.arrollton's significance was further strengthened when the railroad was extended to Denton in 1880 by Jay Gould, who sold the line to the MissouriâKansasâTexas Railroad (the Katy) in 1881. By 1885, Carrollton had flour mills, cotton gins, two churches, a school, and a population of 150.