Yemen is 3,529 times larger than Oakland, California.
Area: 527,968 km2 World Factbook
Population: 26,052,966 (July 2014) World Factbook
Yemen, officially known as the Republic of Yemen, is an Arab country in Western Asia, occupying the southwestern to southern end of the Arabian Peninsula. Yemen is the second largest country in the peninsula, occupying 527,970 km². The coastline stretches for about 2,000 km. Wikipedia
Area: 150 km2 calculated
Oakland is a major West Coast port city in the U.S. state of California. The Port of Oakland is the busiest port for San Francisco Bay and all of Northern California. Wikipedia