Entity data for Tonga's 5 administrative divisions (island groups). Data from GADM 4.1 boundaries.
| Source | URL | Data Used |
|---|---|---|
| Tonga Department of Statistics | tongastats.gov.to | Census data, island divisions |
| Wikipedia - Administrative divisions of Tonga | wikipedia.org | Administrative divisions (verification) |
| GADM (v4.1) | gadm.org | Administrative boundaries (island divisions) |