Cameroon is 2,120 times larger than Houma, Shanxi.
Area: 475,440 km2 World Factbook
Population: 23,130,708 (July 2014) World Factbook
Cameroon, officially the Republic of Cameroon, is a country in the west Central Africa region. It is bordered by Nigeria to the west; Chad to the northeast; the Central African Republic to the east; and Equatorial Guinea, Gabon, and the Republic of the Congo to the south. Wikipedia
Area: 224 km2 calculated
Houma is a city in the Shanxi province of the People's Republic of China, on the Fen River - the tributary of Yellow River, south of Linfen. It is 220 square km large and has a population of 297,000. Wikipedia