There are 304 cities and state capitals in the United States with a population of at least 100,000 on July 1, 2015, as estimated by the United States Census Bureau. Delaware, Maine, Vermont, West Virginia and Wyoming do not have cities with populations of 100,000 or more.

Of the top twenty most populous cities in the U.S. there are six that are from the state of Texas. The six cities of Texas are listed below with their ranking and population estimate as of 2015:

4 Houston 2,296,224

7 San Antonio 1,469,845

9 Dallas 1,300,092

11 Austin 931,830

16 Fort Worth 833,319

20 El Paso 681,124

More Info: en.wikipedia.org