The Gemeindeschlüssel is an 8-digit number that identifies the local authority in Germany. When you first register your address, the form requires you to give this number, although it is often pre-printed.

If not, ask at the town hall where you are registering. Most people will not know their Gemeindeschlüssel and you are highly unlikely to need it at any other time!

To hear a simple explanation and a short discussion in German, listen to the podcast:

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