The nearest land is Takaroa Atoll, located 10 kilometres to the northeast.
Takapoto's lagoon has a high salinity and a strong phytoplankton biomass.
Geographically Takapoto is part of the King George Islands subgroup, which includes: Ahe, Manihi, Takapoto, Takaroa and Tikei.
Takapoto Atoll has 380 inhabitants. Fakatopatere, the main village on Takapoto, is located at the southern end of the atoll.
The first recorded European to sight Takapoto Atoll was Jacob Le Maire in 1616.
Takapoto Atoll was visited by the Charles Wilkes expedition in September 1839.
Takapoto Airport was inaugurated in 1973.
The commune of Takaroa-Takapoto consists of the atolls of Takaroa and Takapoto, and Tikei Island.