McKinney was among the 10 fastest-growing U.S. cities with at least 50,000 residents between July 2017-July 2018, according to new population estimates. The estimates, which were released by the U.S. Census Bureau, show McKinney’s total population in 2018 was 191,645 residents. This is a 5.4% increase from the previous year. Other fast-growth cities include New Braunfels, ranked second, Frisco, ranked fourth, Georgetown, ranked seventh, and Rowlett, ranked eight. In 2018, Collin County’s population hit the 1 million-resident mark, according to Census estimates released April 18. Collin County added 33,753 residents from 2017 to 2018, making it the fourth fastest-growing county in the country. Harris County was the third fastest-growing county from 2017 to 2018, followed by Clark County, Nevada, at No. 2 and Maricopa County, Arizona, at No. 1. “One interesting trend we are seeing this year is that metro areas not among the most populous ... are ranked in the top 10 for population growth,” Sandra Johnson, a demographer in the U.S. Census Bureau’s Population Division, said in a news release. The Dallas-Fort Worth-Arlington and Houston-The Woodlands-Sugar Land metro areas each gained more than one million people since 2010, according to population estimates. With a population of more than 7.5 million and 7 million, respectively, the Dallas-Fort Worth-Arlington and Houston-The Woodlands-Sugar Land metro areas are ranked the fourth and fifth most-populous metros behind New York, Los Angeles and Chicago. Texas’s overall population grew by more than 3.5 million residents from mid-2010 to July 2018, according to the data.