Irinjalakuda is Taluka (Tehsil) in Thrissur district of Kerala state. Irinjalakuda has 6 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 680307 | Chalakudi South PIN Code | Thrissur | Irinjalakuda | Sub Office |
| 680307 | Chalakudi Town PIN Code | Thrissur | Irinjalakuda | Sub Office |
| 680731 | Kottat PIN Code | Thrissur | Irinjalakuda | Branch Office |
| 680733 | Madathumpady PIN Code | Thrissur | Irinjalakuda | Branch Office |
| 680301 | Nenmenikkara PIN Code | Thrissur | Irinjalakuda | Branch Office |
| 680664 | Srinngapuram PIN Code | Thrissur | Irinjalakuda | Sub Office |