ISO 3166-2:EE is the entry for Estonia in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Currently for Estonia, ISO 3166-2 codes are defined for 15 counties.
Each code consists of two parts, separated by a hyphen. The first part is EE, the ISO 3166-1 alpha-2 code of Estonia. The second part is two digits.
Read more about ISO 3166-2:EE: Current Codes