| Place | Post Code |
|---|---|
| Arankottai, Udayarpalayam | 621701 |
| Arulmozhi, Udayarpalayam | 612904 |
| Athichanur, Udayarpalayam | 621804 |
| Attukurichi, Udayarpalayam | 608901 |
| Ayyappanaickenpettai, Udayarpalayam | 612903 |
| Ayyur, Udayarpalayam | 608901 |
| Ayyur R.F, Udayarpalayam | 608901 |
| Azhagarkoil, Udayarpalayam | 612903 |
| Balasundara Puram, Udayarpalayam | 612904 |
| Chetti Kuzhi Pallam, Udayarpalayam | 621806 |
| Chetti Tirukonam, Udayarpalayam | 621701 |
| Chinna Kalleri, Udayarpalayam | 621803 |
| Chinna Karukkai, Udayarpalayam | 608901 |
| Chinna Krishnapuram, Udayarpalayam | 621805 |
| Chinnathukurichi, Udayarpalayam | 608901 |
| Chitheri, Udayarpalayam | 612903 |
| Chokkalingapuram, Udayarpalayam | 612903 |
| Cholamadevi, Udayarpalayam | 612902 |
| Darmasamuthiram, Udayarpalayam | 621805 |
| Devamangalam, Udayarpalayam | 612902 |
| Devanur, Udayarpalayam | 621806 |
| Eandal, Udayarpalayam | 621804 |
| East Veli, Udayarpalayam | 621805 |
| Edaikattu, Udayarpalayam | 612905 |
| Edayakurichi, Udayarpalayam | 621719 |
| Edayar, Udayarpalayam | 621804 |
| All postal codes in Ariyalur | |
|---|---|
| Ariyalur, Ariyalur | |
| Sendurai, Ariyalur | |
| Udayarpalayam, Ariyalur | |