Indonesia area data based on the Permendagri No 137 Tahun 2017 specification. The areas are formatted into schema found in https://github.com/edwardsamuel/Wilayah-Administratif-Indonesia
There are currently only 2 available format: JSON and SQL. Other formats should be easily derivable from those.
Note: The SQL file is generated to use in PostgreSQL. There's no guarantee it'll work elsewhere
Credits to https://github.com/cahyadsn/wilayah for the actual data.