The Tuvalu archipelago consist of six true atolls and three reef islands. The true atolls are Funafuti, Nanumea, Nui, Nukufetau, and Nukulaelae, while Nanumaga, Niulakita, and Niutao are single islands. The last three have small salt-water ponds, while Nanumea has a fresh water pond, unusual for an atoll.

The table below lists demographics based on the census of 2002.

The current population (estimated in 2005) is 11,636

Link: Scaled maps showing the true size of each island relative to each other.