German postal codes have 5 digits: the first 2 identify the state/region and the last 3 the city district (e.g. 01067/01069 for Dresden). Called Postleitzahl (PLZ), managed by Deutsche Post.

For cross-border e-commerce sellers, always verify the recipient's address and ZIP code before shipping, and check whether the destination is in a remote/outlying postal area — delivery costs can differ dramatically.