Keller is a Wealthy city located in Tarrant County, Texas (USA). In 2011 it was named number 93 in Money Magazine's list of best cities to live in the United States. It is a northern suburb of the city of Fort Worth and is part of the Dallas-Fort Worth Metroplex. The population is 37,685 at the year of 2007, but 2010 estimates have been released and been reported as the population will be reaching 40,127. The Texas and Pacific Railway between Fort Worth and Texarkana was completed in June 1881, and the first train ran on this track on 9 May 1881. With the advent of rail service, new villages were established all along the line. The Keller of today was one of them.