El Paso, Texas is 11 times larger than Pomona, California.
Area: 701 km2 calculated
El Paso is the county seat of El Paso County, Texas, United States, and lies in far West Texas. As of July 1, 2013, the population estimate from the U.S. Census was 674,433, making it the 19th most populous city in the United States. Its U.S. Wikipedia
Area: 63 km2 calculated
Pomona is the fifth largest city in Los Angeles County, California. Pomona is located in between the Inland Empire and the San Gabriel Valley. As of the 2010 United States Census, the city's population was 149,058. Wikipedia