Austin, Texas is 13 times larger than Huntington Beach, California.
Area: 69 km2 calculated
Huntington Beach is a seaside city in Orange County in Southern California. The city is named after American businessman Henry E. Huntington. According to the 2010 census, the city population was 189,992; making it the largest beach city in Orange County in terms of population. Wikipedia
Area: 933 km2 calculated
Austin is the capital of Texas and the seat of Travis County. Located in Central Texas and the American Southwest, it is the 11th-most populous city in the United States of America and the fourth-most populous city in the state of Texas. Wikipedia