| Place | Post Code |
|---|---|
| North Poolangulam, Ambasamudram | 627415 |
| Oldcamp, Ambasamudram | 627421 |
| Oothu, Ambasamudram | 627427 |
| Pallakkal, Ambasamudram | 627413 |
| Palvannanthapuram, Ambasamudram | 627415 |
| Panajadi, Ambasamudram | 627413 |
| Pandava Kulam, Ambasamudram | 627423 |
| Pannachadi, Ambasamudram | 627413 |
| Papanasam Mills, Ambasamudram | 627422 |
| Papanasam Project, Ambasamudram | 627425 |
| Papanasam Upper Dam, Ambasamudram | 627425 |
| Pappagudi, Ambasamudram | 627602 |
| Pappankulam, Ambasamudram | 627110, 627423 |
| Pattamadai, Ambasamudram | 627453 |
| Pattankadu, Ambasamudram | 627414 |
| Pattavarthi, Ambasamudram | 627602 |
| Pethanpillai Kudiyiruppu, Ambasamudram | 627412 |
| Pevamani Village, Ambasamudram | 627423 |
| Poolangulam, Ambasamudram | 627415 |
| Poolangulam West, Ambasamudram | 627415 |
| Pothai, Ambasamudram | 627401 |
| Pothukudi, Ambasamudram | 627413 |
| Pottal Colony, Ambasamudram | 627603 |
| Pottalpudur, Ambasamudram | 627423 |
| Prancheri, Ambasamudram | 627451 |
| Pruankattapuliyur, Ambasamudram | 627415 |