| Kyčerka | 022 04 | Postcode Kycerka (street) » Cadca » Slovakia |  |
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| Kálov | 010 01 | Postcode Kalov (street) » Zilina » Slovakia | | |
| Kátlina | 018 02 | Postcode Katlina » Povazska Bystrica » Slovakia | | |
| Kátlovce | 919 55 | Postcode Katlovce » Trnava » Slovakia | | |
| Kátov | 908 49 | Postcode Katov » Skalica » Slovakia | | |
| Kéč | 946 19 | Postcode Kec » Komarno » Slovakia | | |
| Kírť | 991 22 | Postcode Kirt » Velky Krtis » Slovakia | | |
| Kórejská | 851 10 | Postcode Korejska (street) » Bratislava » Slovakia | | |
| Kórejská | 040 01 | Postcode Korejska (street) » Kosice » Slovakia | | |
| Kôprová | 821 07 | Postcode Koprova (street) » Bratislava » Slovakia | | |
| Kôstková | 851 10 | Postcode Kostkova (street) » Bratislava » Slovakia | | |
| Kôšikovo | 977 01 | Postcode Kosikovo (street) » Brezno » Slovakia | | |
| Kúkoľová | 831 07 | Postcode Kukolova (street) » Bratislava » Slovakia | | |
| Kúnovec | 017 01 | Postcode Kunovec (street) » Povazska Bystrica » Slovakia | | |
| Kúpeľná | 811 02 | Postcode Kupelna (street) » Bratislava » Slovakia | | |
| Kúpeľná | 945 05 | Postcode Kupelna (street) » Komarno » Slovakia | | |
| Kúpeľná | 949 01 | Postcode Kupelna (street) » Nitra » Slovakia | | |
| Kúpeľná | 080 01 | Postcode Kupelna (street) » Presov » Slovakia | | |
| Kúpeľská | 958 04 | Postcode Kupelska (street) » Partizanske » Slovakia | | |
| Kúria | 949 07 | Postcode Kuria (street) » Nitra » Slovakia | | |
| Kút | 031 01 | Postcode Kut (street) » Liptovsky Mikulas » Slovakia | | |
| Kútna | 031 01 | Postcode Kutna (street) » Liptovsky Mikulas » Slovakia | | |
| Kútniky | 929 01 | Postcode Kutniky » Dunajska Streda » Slovakia | | |
| Kúty | 908 01 | Postcode Kuty » Senica » Slovakia | | |
| Kúty | 971 01 | Postcode Kuty » Prievidza » Slovakia | | |
