| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| kacpurski | city | Mazowieckie | Poland | 52.76 | 21.90 | 390 | 19226 |
| kaczorowski | city | Mazowieckie | Poland | 52.73 | 20.15 | 370 | 3941 |
| kaleński | city | Mazowieckie | Poland | 51.73 | 21.72 | 830 | 5967 |
| kalinowski | city | Mazowieckie | Poland | 52.72 | 21.58 | 403 | 3539 |
| kaliński | city | Mazowieckie | Poland | 51.83 | 21.23 | 390 | 6996 |
| kamieńczycki | city | Mazowieckie | Poland | 52.72 | 22.37 | 406 | 2712 |
| kamionecki | city | Mazowieckie | Poland | 51.93 | 21.74 | 830 | 5228 |
| kański | city | Mazowieckie | Poland | 52.52 | 21.13 | 203 | 5566 |
| kietlanecki | city | Mazowieckie | Poland | 52.75 | 22.17 | 403 | 3459 |
| kinicki | city | Mazowieckie | Poland | 52.77 | 20.16 | 341 | 6828 |
| kisielewski | city | Mazowieckie | Poland | 52.83 | 19.76 | 380 | 3527 |
| klimoncki | city | Mazowieckie | Poland | 52.91 | 21.92 | 390 | 2666 |
| kobyliński | city | Mazowieckie | Poland | 52.93 | 21.07 | 347 | 4119 |
| kosewski | city | Mazowieckie | Poland | 52.60 | 20.77 | 347 | 7033 |
| kosiński | city | Mazowieckie | Poland | 52.56 | 19.93 | 416 | 5200 |
| kosucki | city | Mazowieckie | Poland | 52.76 | 22.10 | 377 | 3827 |
| kowalewecki | city | Mazowieckie | Poland | 52.83 | 20.26 | 318 | 3652 |
| kozicki | city | Mazowieckie | Poland | 52.80 | 21.77 | 403 | 916 |
| kozołupski | city | Mazowieckie | Poland | 52.53 | 21.98 | 830 | 3011 |
| kraszewski | city | Mazowieckie | Poland | 52.80 | 20.04 | 354 | 3400 |
| kruszenicki | city | Mazowieckie | Poland | 52.78 | 20.24 | 360 | 3723 |
| kruszyński | city | Mazowieckie | Poland | 51.66 | 21.66 | 406 | 4566 |
| krzyżewski | city | Mazowieckie | Poland | 52.93 | 21.09 | 364 | 3777 |
| kujawski | city | Mazowieckie | Poland | 51.91 | 21.83 | 830 | 4992 |
| kuleszkowsko-nienałtowski | city | Mazowieckie | Poland | 52.80 | 22.15 | 403 | 3026 |
| kurowicki | city | Mazowieckie | Poland | 52.52 | 22.32 | 830 | 3179 |
| kuzkowiźniański | city | Mazowieckie | Poland | 52.75 | 21.91 | 396 | 15464 |