São Tomé and Principe is 9.1 times larger than Fontana, California.
Area: 964 km2 World Factbook
Population: 190,428 (July 2014) World Factbook
São Tomé and Príncipe officially the Democratic Republic of São Tomé and Príncipe, is a Portuguese-speaking island nation in the Gulf of Guinea, off the western equatorial coast of Central Africa. Wikipedia
Area: 106 km2 calculated
Fontana is a city of 200,762 residents in San Bernardino County, California. Founded by Azariel Blanchard Miller in 1913, it remained essentially rural until World War II, when entrepreneur Henry J. Kaiser built a large steel mill in the area. Wikipedia