| Place |
Post Code |
| Adamów, Sienno |
27-350 |
| Aleksandrów, Sienno |
27-350 |
| Aleksandrów Duży, Sienno |
27-350 |
| Bronisławów, Sienno |
27-350 |
| Dąbrówka, Sienno |
27-350 |
| Dębowe Pole, Sienno |
05-640, 27-350 |
| Eugeniów, Sienno |
27-350 |
| Gozdawa, Sienno |
27-350 |
| Hieronimów, Sienno |
27-350 |
| Janów, Sienno |
27-350 |
| Jawor Solecki, Sienno |
27-350 |
| Jaworska Wola, Sienno |
27-350 |
| Kadłubek, Sienno |
27-350 |
| Karolów, Sienno |
27-350 |
| Kochanówka, Sienno |
27-350 |
| Krzyżanówka, Sienno |
27-350 |
| Leśniczówka, Sienno |
27-350 |
| Ludwików, Sienno |
27-350 |
| Nowa Wieś, Sienno |
27-350 |
| Olechów Nowy, Sienno |
27-350 |
| Olechów Stary, Sienno |
27-350 |
| Osówka, Sienno |
27-350 |
| Piasków, Sienno |
27-350 |
| Praga Dolna, Sienno |
27-350 |
| Praga Górna, Sienno |
27-350 |
| Sienno, Sienno |
27-350 |