| Place | Post Code |
|---|---|
| Elaiyur, Udayarpalayam | 621806 |
| Elamangalam, Udayarpalayam | 621806 |
| Elayaperuma Nallur, Udayarpalayam | 612903 |
| Elunthiravankuppam, Udayarpalayam | 608703 |
| Eravangudi, Udayarpalayam | 621803 |
| Eravangudy, Udayarpalayam | 621803 |
| Eripatti, Udayarpalayam | 621803 |
| Eswarankulam, Udayarpalayam | 612903 |
| Govindaputhur, Udayarpalayam | 621701 |
| Govt High School, Udayarpalayam | 612905 |
| Idanganni, Udayarpalayam | 612904 |
| Ilaiyur, Udayarpalayam | 621806 |
| Ilayaperumanallur, Udayarpalayam | 612903 |
| Irudayapuram, Udayarpalayam | 621803 |
| Irugaiyur, Udayarpalayam | 612904 |
| Irular Colony, Udayarpalayam | 621801 |
| K. Kudikadu, Udayarpalayam | 621803 |
| K.N. Kuppam, Udayarpalayam | 621803 |
| Kadambur, Udayarpalayam | 621701 |
| Kadampur, Udayarpalayam | 621701 |
| Kaikaduvetti, Udayarpalayam | 612903 |
| Kailasapuram, Udayarpalayam | 612903 |
| Kakapalaiyam, Udayarpalayam | 612904 |
| Kalinganthurai, Udayarpalayam | 612905 |
| Kallan Kollai, Udayarpalayam | 621805 |
| Kallangulam, Udayarpalayam | 621804 |
| All postal codes in Ariyalur | |
|---|---|
| Ariyalur, Ariyalur | |
| Sendurai, Ariyalur | |
| Udayarpalayam, Ariyalur | |