Pincode 602021 have been assigned to 7 locations.

Ikkadu , Tiruvallur , Thiruvallur
Karikalavakkam , Ikkadu , Tiruvallur
Kilanur , Ikkadu , Tiruvallur
Monnavedu , Ikkadu , Tiruvallur
Odikkadu , Ikkadu , Tiruvallur
Perattur , Ikkadu , Tiruvallur
Thalakancheri , Ikkadu ,