The code of the state identifies the state. The code is typically used within addresses. Some countries may not provide a code. For those the field is null.
The country code in ISO two letter format (e.g. UK, DE, CH, US).
The ID of the state corresponds to the subdivision identifier defined in ISO 3166-2. The format consists of the country code followed by a dash and a subdivision identifier.
The name is a human readable label of the state in the language of the region.