Postal Code 4540-377 - Olival, Aveiro, Portugal
Postal Code: 4540-377
Postal System Details
Postal Authority
CTT – Correios de Portugal
Postal System
Seven-digit postal code (4 digits + 3 digits: 1234-567)
Region Structure
District → Municipality → Parish → Delivery Zone
Area Information
The postal code 4540-377 follows Portugal’s seven-digit postal addressing system, overseen by CTT – Correios de Portugal, the national postal authority of Portugal. Portuguese postal codes follow the format X X X X–X X X, such as 1 0 0 0–0 0 X (illustrative only). The first four digits define the municipality and parish grouping, while the last three digits specify localized delivery sectors. This postal code corresponds to Olival in the Aveiro district/municipality, located near coordinates 40.9199 and -8.4686. Routing follows District → Municipality → Parish → Delivery Zone. Example mapping: - District/Municipality: Aveiro - Parish: (Example: Central Parish Area) - Locality: Olival - Delivery Sector: Based on last three digits This page reflects routing principles followed by CTT. All examples shown are illustrative only. To ensure precise delivery, verify that the parish and municipality correspond with Olival, Aveiro, Portugal.
Country:
Portugal
State:
Aveiro
Area:
Olival
Postal Code:
4540-377
Latitude:
40.9199
Longitude:
-8.4686
Frequently Asked Questions
1. What area does 4540-377 represent in Portugal?
It designates the parish-level delivery zone serving Olival within the Aveiro district/municipality.
2. How do Portuguese postal codes work?
They use the format 1234-567, where the first digits define municipality/parish routing.
3. Can 4540-377 verify an address in Portugal?
Yes—if municipality and parish match Olival, Aveiro.
4. Which authority manages postal codes in Portugal?
CTT – Correios de Portugal manages national postal routing and code assignments.