Jaynagar I is Taluka (Tehsil) in South 24 Parganas district of West Bengal state. Jaynagar I has 15 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 743337 | Banerjee Chak PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Chaltaberia PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Chatra Maldari PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Chitraganj PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Dara PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Dewanchak PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743372 | Gorerhat PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Joynagar Majilpur PIN Code | South 24 Parganas | Jaynagar I | Sub Office |
| 743372 | Kashimpur PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743372 | Madhya Shibpur PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Monipur Banstala PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743372 | Sarberia PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743377 | Sarberia PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743337 | Sastitala PIN Code | South 24 Parganas | Jaynagar I | Branch Office |
| 743338 | Tangrabichi PIN Code | South 24 Parganas | Jaynagar I | Branch Office |