Irving is a city located in the U.S. state of Texas within Dallas County. According to a 2012 estimate from the U.S. Census Bureau, the city population was 225,427 making it the thirteenth most populous city in Texas. Wikipedia

Orange County is a county in the U.S. state of California. As of the 2010 census, the population was 3,010,232 making it the third-most populous county in California, the sixth-most populous in the United States, and it more populous than twenty-one U.S. states. Its county seat is Santa Ana. Wikipedia