| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Kaarlenkyla | city | Ahvenanmaan Laani | Finland | 59.9166667 | 20.9 | 0 | 197 |
| Kaarlenkylä | city | Ahvenanmaan Laani | Finland | 59.9166667 | 20.9 | 0 | 197 |
| Kallso | city | Ahvenanmaan Laani | Finland | 60 | 20.3833333 | 36 | 121 |
| Kallsö | city | Ahvenanmaan Laani | Finland | 60 | 20.3833333 | 36 | 121 |
| Kalmsta | city | Ahvenanmaan Laani | Finland | 60.1186111 | 19.9675 | 29 | 10420 |
| Kalsborg | city | Ahvenanmaan Laani | Finland | 60.1738889 | 19.5302778 | 39 | 203 |
| Kanskit | city | Ahvenanmaan Laani | Finland | 60.2052778 | 20.7027778 | 45 | 116 |
| Karbele | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9333333 | 42 | 1967 |
| Karbële | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9333333 | 42 | 1967 |
| Karlberg | city | Ahvenanmaan Laani | Finland | 60.1122222 | 19.8147222 | 0 | 920 |
| Karlberg | city | Ahvenanmaan Laani | Finland | 60.0497222 | 20.1022222 | 26 | 638 |
| Karlby | city | Ahvenanmaan Laani | Finland | 59.9166667 | 20.9 | 0 | 197 |
| Karleby | city | Ahvenanmaan Laani | Finland | 59.9166667 | 20.9 | 0 | 197 |
| Karlgard | city | Ahvenanmaan Laani | Finland | 60.15 | 19.7166667 | 0 | 554 |
| Karlgård | city | Ahvenanmaan Laani | Finland | 60.15 | 19.7166667 | 0 | 554 |
| Karls | city | Ahvenanmaan Laani | Finland | 60.2091667 | 19.6541667 | 3 | 462 |
| Karls | city | Ahvenanmaan Laani | Finland | 60.1319444 | 19.8286111 | 19 | 1221 |
| Karlsdal | city | Ahvenanmaan Laani | Finland | 60.1780556 | 19.5233333 | 26 | 203 |
| Karlso | city | Ahvenanmaan Laani | Finland | 60.1927778 | 19.8183333 | 13 | 1083 |
| Karlsö | city | Ahvenanmaan Laani | Finland | 60.1927778 | 19.8183333 | 13 | 1083 |
| Karrbole | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9333333 | 42 | 1967 |
| Karrböle | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9333333 | 42 | 1967 |
| Kastelholma | city | Ahvenanmaan Laani | Finland | 60.2333333 | 20.0666667 | 19 | 577 |
| Kastelhom | city | Ahvenanmaan Laani | Finland | 60.2333333 | 20.0666667 | 19 | 577 |
| Kattby | city | Ahvenanmaan Laani | Finland | 60.2102778 | 19.7269444 | 52 | 674 |
| Kattnas | city | Ahvenanmaan Laani | Finland | 60.1983333 | 19.6933333 | 0 | 440 |
| Kattnäs | city | Ahvenanmaan Laani | Finland | 60.1983333 | 19.6933333 | 0 | 440 |
| Khammarland | city | Ahvenanmaan Laani | Finland | 60.2166667 | 19.75 | 16 | 713 |
| Kihla | city | Ahvenanmaan Laani | Finland | 60.1583333 | 19.9838889 | 45 | 5727 |
| Klemes | city | Ahvenanmaan Laani | Finland | 60.2111111 | 19.6611111 | 3 | 462 |
| Kleven | city | Ahvenanmaan Laani | Finland | 60.2847222 | 20.1813889 | 164 | 612 |
| Klinten | city | Ahvenanmaan Laani | Finland | 60.1086111 | 19.93 | 3 | 10603 |
| Knutboda | city | Ahvenanmaan Laani | Finland | 60.0666667 | 20.0333333 | 22 | 1801 |
| Knutsboda | city | Ahvenanmaan Laani | Finland | 60.0666667 | 20.0333333 | 22 | 1801 |
| Knutsoda | city | Ahvenanmaan Laani | Finland | 60.0666667 | 20.0333333 | 22 | 1801 |
| Knutsöda | city | Ahvenanmaan Laani | Finland | 60.0666667 | 20.0333333 | 22 | 1801 |
| Kokar | city | Ahvenanmaan Laani | Finland | 59.9333333 | 20.8833333 | 59 | 197 |
| Korso | city | Ahvenanmaan Laani | Finland | 60.4166667 | 21 | 0 | 109 |
| Korsö | city | Ahvenanmaan Laani | Finland | 60.4166667 | 21 | 0 | 109 |
| Koskenpaa | city | Ahvenanmaan Laani | Finland | 60.4166667 | 21.0166667 | 0 | 109 |
| Koskenpää | city | Ahvenanmaan Laani | Finland | 60.4166667 | 21.0166667 | 0 | 109 |
| Krogstad | city | Ahvenanmaan Laani | Finland | 60.1 | 20.2666667 | 3 | 348 |
| Kroks | city | Ahvenanmaan Laani | Finland | 60.0497222 | 20.5061111 | 22 | 231 |
| Kroksta | city | Ahvenanmaan Laani | Finland | 60.1 | 20.2666667 | 3 | 348 |
| Krokstad | city | Ahvenanmaan Laani | Finland | 60.1 | 20.2666667 | 3 | 348 |
| Kulla | city | Ahvenanmaan Laani | Finland | 60.2333333 | 20.0833333 | 49 | 577 |
| Kullao | city | Ahvenanmaan Laani | Finland | 60.2038889 | 19.8591667 | 29 | 1323 |
| Kullaö | city | Ahvenanmaan Laani | Finland | 60.2038889 | 19.8591667 | 29 | 1323 |
| Kumlinge | city | Ahvenanmaan Laani | Finland | 60.2666667 | 20.7833333 | 16 | 180 |
| Kvarnbo | city | Ahvenanmaan Laani | Finland | 60.2847222 | 20.0430556 | 0 | 693 |
| Kvarnkulla | city | Ahvenanmaan Laani | Finland | 60.2666667 | 20.765 | 19 | 180 |
| Kyrkoby | city | Ahvenanmaan Laani | Finland | 60.2163889 | 19.6052778 | 9 | 481 |
| Kyrkobyn | city | Ahvenanmaan Laani | Finland | 60.1513889 | 19.9516667 | 42 | 9281 |
| Kyrkogardso | city | Ahvenanmaan Laani | Finland | 60.0333333 | 20.8333333 | 0 | 22 |
| Kyrkogårdsö | city | Ahvenanmaan Laani | Finland | 60.0333333 | 20.8333333 | 0 | 22 |
| Känskit | city | Ahvenanmaan Laani | Finland | 60.2052778 | 20.7027778 | 45 | 116 |
| Kökar | city | Ahvenanmaan Laani | Finland | 59.9333333 | 20.8833333 | 59 | 197 |
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