country-states/data/RS.json

database with countries and states

{
  "region": "Europe",
  "iso": "RS",
  "name": "Serbia",
  "hasPostalCodes": true,
  "states": [
    {
      "name": "Kosovo-Metohija",
      "iso": "RS-KM"
    },
    {
      "name": "Vojvodina",
      "iso": "RS-VO"
    }
  ],
  "zipRegex": "^(\\d{5})$"
}