Gambia is 24 times larger than Shihezi (China).
Area: 11,295 km2 World Factbook
Population: 1,925,527 (July 2014) World Factbook
The Gambia is a country in West Africa. It is surrounded by Senegal, apart from a short strip of Atlantic coastline at its western end. It is the smallest country on mainland Africa. Wikipedia
Area: 470 km2 calculated
Shihezi is a sub-prefecture-level city in northern Xinjiang, People's Republic of China. Wikipedia