Entity data for Turkey's 81 provinces (iller). Data from GADM 4.1 boundaries.
| Source | URL | Data Used |
|---|---|---|
| TurkStat (Turkish Statistical Institute) | tuik.gov.tr | Census data, provincial structure |
| Wikipedia - Provinces of Turkey | wikipedia.org | Administrative divisions (verification) |
| GADM (v4.1) | gadm.org | Administrative boundaries (provinces) |