| List of All Postal Codes in Harju County |
| List of All Postal Codes in Hiiu County |
| List of All Postal Codes in Ida-Viru County |
| List of All Postal Codes in Järva County |
| List of All Postal Codes in Jõgeva County |
| List of All Postal Codes in Lääne County |
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| List of All Postal Codes in Lääne-Viru County |
| List of All Postal Codes in Pärnu County |
| List of All Postal Codes in Põlva County |
| List of All Postal Codes in Rapla County |
| List of All Postal Codes in Saare County |
| List of All Postal Codes in Tartu County |
| List of All Postal Codes in Valga County |
| List of All Postal Codes in Viljandi County |
| List of All Postal Codes in Võru County |