| Ort | Postleitzahl |
|---|---|
| Borki, Siemkowice | 98-354 |
| Bugaj Lipnicki, Siemkowice | 98-354 |
| Bugaj Radoszewicki, Siemkowice | 98-354 |
| Delfina, Siemkowice | 98-354 |
| Ignaców, Siemkowice | 98-354 |
| Katarzynopole, Siemkowice | 98-354 |
| Kije, Siemkowice | 98-354 |
| Kolonia Lipnik, Siemkowice | 98-354 |
| Laski, Siemkowice | 98-354 |
| Lipnik, Siemkowice | 98-354 |
| Łukomierz, Siemkowice | 98-354 |
| Marchewki, Siemkowice | 98-354 |
| Mazaniec, Siemkowice | 98-354 |
| Mierzanów, Siemkowice | 98-354 |
| Miętno, Siemkowice | 98-354 |
| Młynki (Osada Leśna), Siemkowice | 98-354 |
| Mokre, Siemkowice | 98-354 |
| Ożegów, Siemkowice | 98-354 |
| Papierek (Osada Leśna), Siemkowice | 98-354 |
| Pieńki Laskowskie, Siemkowice | 98-354 |
| Radoszewice, Siemkowice | 98-354 |
| Siemkowice, Siemkowice | 98-354 |
| Tądle, Siemkowice | 98-354 |
| Zmyślona, Siemkowice | 98-354 |