- PIN code
- 521004
- Main post office
- Krishna University (sub office)
- District
- Krishna
- State
- Andhra Pradesh
- Postal division
- Machilipatnam
- Region and circle
- Vijayawada Region, Andhra Pradesh circle
- Delivery
- Delivery PIN (4 of 4 offices deliver)
- Location
- Open on a map (16.137, 81.100)
Post offices with PIN 521004
| Post office | Type | Delivery |
|---|---|---|
| Krishna University | Sub office | Delivers mail |
| Polatitippa | Branch office | Delivers mail |
| Rudravaram | Branch office | Delivers mail |
| Saradanagar | Branch office | Delivers mail |
521004 covers 0 head offices, 1 sub office and 3 branch offices.
What the digits of 521004 mean
- 5: India Post's Southern region, which covers Andhra Pradesh, Karnataka, Puducherry and Telangana (3,313 PINs).
- 52: the Andhra Pradesh postal circle; 415 PINs start with 52.
- 521: the sorting district, shared by 108 PINs in 3 districts.
- 004: the delivery post office within it, Krishna University.
Head post office for 521004
The post offices with this PIN belong to the Machilipatnam postal division, whose head offices are listed below. Money orders, savings accounts and complaints that a sub or branch office cannot settle go to the head office.
- Avanigadda head post office: 521121
- Machilipatnam head post office: 521001
Nearby PIN codes in Krishna
- Chintaguntapalem521003
- Chilakalapudi521002
- Machilipatnam521001
- Gannavaram521101
- Bacon Factory521102
- Hanuman Junction521105
- Kanumolu521106
- Mustabad (Krishna)521107
Writing an address with 521004
Put the PIN on the last line, after the town and state, so the sorting machines and postmen can read it:
Name House number, street Krishna University post office Krishna, Andhra Pradesh – 521004
Frequently asked questions
Which post office has PIN code 521004?
4 post offices share it: Krishna University, Polatitippa, Rudravaram and Saradanagar, in Krishna district, Andhra Pradesh.
Is 521004 a delivery PIN code?
Yes. All 4 of its post offices deliver mail; letters addressed to 521004 are delivered.
Which district is 521004 in?
Krishna district, Andhra Pradesh. It is in the Machilipatnam postal division (Vijayawada Region) of the Andhra Pradesh postal circle.
What is the head post office for 521004?
The Machilipatnam postal division's head offices are Avanigadda (521121) and Machilipatnam (521001).
Sources
Last checked on 6 October 2026. PIN codes and post offices are from India Post’s directory on data.gov.in. Post offices are sometimes opened, merged or renamed; check with India Post before relying on a PIN for an official form.