16 PIN codes
| PIN code | Post offices | Taluk / tehsil |
|---|---|---|
| 121001 | Faridabad Nit Ho, Factory Area Faridabad So, Feroz Gandhi Nagar Faridabad So and 5 more | – |
| 121002 | Faridabad City So, Faridabad Sector 16 So, Faridabad Sector 16A So and 3 more | – |
| 121003 | Amarnagar So Faridabad, Mathura Road Faridabad So, Anangpur Bo and 2 more | – |
| 121004 | Ballabgarh So, Chawla Colony Ballabgarh So, Faridabad Sector 3 So and 17 more | – |
| 121005 | Faridabad Sector 22 So, Jawahar Colony Faridabad So | – |
| 121006 | Faridabad Sector 7 So, Faridabad Sector 8 So, Faridabad Sector 9 So and 1 more | – |
| 121007 | Escortsnagar Faridabad So, Faridabad Sector 12 So, Faridabad Sector 15 So | – |
| 121008 | Faridabad Sector 29 So | – |
| 121009 | Surajkund Faridabad So | – |
| 121010 | Nhpc Colony Faridabad So, Sector46 | – |
| 121012 | Sector21D So | – |
| 121013 | Sec91 So | – |
| 121014 | Greater Faridabad Po | – |
| 121015 | Sector55 Po | – |
| 121101 | Tigaon So, Alipur Bo, Badarpur Syed Bo and 6 more | – |
| 121102 | Shri Vishwakarma Skill University | – |