Turkey district boundary geometry
Source: geoBoundaries TUR-ADM2-54988432 / OpenStreetMap / OSM Boundaries
https://www.geoboundaries.org/api/current/gbOpen/TUR/ADM2/
Boundary year: 2021; release commit 9469f09. Downloaded simplified file contains 973 districts.
License: Open Data Commons Open Database License 1.0 (ODbL)
https://opendatacommons.org/licenses/odbl/1-0/
https://www.openstreetmap.org/copyright
Adaptations: mapshaper 8% simplification, clean, spatial assignment to provinces, normalized central-district names, per-province equirectangular SVG projection.
The adapted geometry is downloadable at /maps/districts/{province-slug}.json and the full reference list at /maps/district-reference.json under ODbL 1.0. Mayor/event records are a separate database.