A geographic coding scheme generates codes for human-created geographical entities such as countries, counties, towns, airports, and so on.
Postal codes are examples of a fine-grained geographic coding schemes capable of resolving down to a single building or group of buildings.
ISO standards:
- ISO 3166, including
- ISO 3166-1 country codes
- ISO 3166-1 country codes
- FIPS two-letter country codes
- FIPS place codes
- FIPS county codes
- FIPS state codes