Global Reference Data for
Address Validation
Standardized across countries
233 address formats mapped in a unified structure with consistent administrative levels.
Multi-language support
299 languages, including local languages, foreign names, English, and transliterations.
Global city definitions
Standardized city definitions and classifications for reliable address validation.
Try our data for Address Validation
HOW DOES IT WORK
Global address validation with self-hosted data in 4 steps
With GeoPostcodes’ reference data, your team can easily validate addresses worldwide. Just download the dataset, integrate it into your system, and refresh it periodically.
Download
Access our verified and standardized ZIP code, city, and address data.
Integrate
Our team of experts will guide the implementation in your custom front-end, back-end, systems, or cloud software.
Validate
Validate addresses with a reliable reference database of ZIP codes and addresses.
Refresh
Frequent updates will keep your data always up-to-date.
Ready to validate addresses at scale?
Our team of data experts is ready to support your
address validation efforts.
20-minute consultation
No commitment required
100+ successful integrations
Why do address validation on-premise?
 | Third-party API | |
|---|---|---|
| Price | FIXED COST | PER QUERY |
| Control over security, speed and latency | FULL | NO |
| Customization | FULL | LIMITED |
| Analytics | FULL | LIMITED |
| Connection to 3rd party required | NO | YES |
| Integration into your software | FULL | NO |
Keep your address data clean and reliable
Clean addresses at input
GeoPostcodes’ global reference data helps companies capture accurate and standardized addresses at the point of entry. Ensure each new address follows official postal standards and regional formatting rules.
Validate addresses post-entry
GeoPostcodes’ validation dataset lets organizations verify and correct existing addresses. Each record is cross-checked with authoritative postal sources to fix errors and ensure global consistency.
Perform bulk address validation
Validate entire lists of addresses at once with GeoPostcodes reference data. Clean large datasets efficiently, correct errors in bulk, and ensure your records remain reliable and consistent.
Geocoding
Why choose GeoPostcodes
Global coverage
Complete coverage across 247 countries, including hard-to-source geographies like China, Japan, Brazil, and Russia.
Highest quality
Built on extensive, authoritative sourcing with robust data engineering and quality control. Standardized and up-to-date.
Expert Consulting
With 15 years of experience, we guide your implementation and deliver data in the format that fits your system.
Trusted by Industry Leaders
Join more than 100 enterprise clients who trust GeoPostcodes for their location data
“After years of failed attempts with other providers, we finally developed a tailored solution together with GeoPostcodes. The collaboration was excellent.”
Mike Brady
Product Manager
“We replaced costly APIs and simplified our location data management thanks to GeoPostcodes. Life without it would be complicated.”
Nick Beaugié
Software Engineer
“With accurate and consistent master data, GeoPostcodes helps us resolve addresses across our platform and bridge data silos through enterprise knowledge graphing. It’s made a real difference.”
Henry Bowers
Data Scientist
William Chao
Product Owner
William Chao
Product Owner
Kousha Mazloumi
Director of Data Science
Frequently Asked Questions
An address validation service checks whether an input address is real, complete, and usable. It verifies that an address exists, confirms the correct structure of postal addresses, and ensures you’re working with an accurate address before storing or using it.
A reliable address validation service helps prevent costly errors caused by incorrect address data and missing data.
GeoPostcodes is not an address validation service in the traditional sense. We don’t operate an address verification service or real-time API.
Instead, we provide authoritative address data combined with expert integration support, enabling you to build address validation directly into your own systems. Our datasets help you verify addresses, confirm that an address exists, and ensure an accurate address using your infrastructure.
This approach gives you:
- Full control over your address data
- Predictable costs without per-call fees
- The ability to run real-time or bulk address validation
- Direct access to experts who support your integration
In short, GeoPostcodes delivers the data and expertise behind address validation, rather than a black-box service.
Address verification focuses on confirming that an address exists and follows official postal rules, while address validation goes further. A full address verification service checks structure, standardization, and consistency across countries.
In practice, most modern address verification solutions combine both approaches. A robust address verification tool ensures an accurate address, flags incorrect address formats, and highlights missing data before issues occur.
High-quality address data is essential for operational efficiency. Poor address data leads to failed deliveries, compliance risks, and costly errors.
Using accurate data ensures smoother logistics, better customer experience, and reliable analytics. Without validated address data, even small mistakes can scale quickly.
Yes. GeoPostcodes provides global address data that enables international address validation across 247 countries.
Our data supports:
- ZIP code and locality-level validation for 247 countries
- Street-level validation for 81 countries
Validating international addresses is complex due to different address formats, administrative structures, and languages. Our address data is standardized across geographies and designed to help you confirm whether an address exists, detect missing data, and build an accurate address within your own systems.
Rather than offering a hosted address verification tool, GeoPostcodes delivers the data and expert integration support needed to implement address validation reliably at global scale.
When an input address is incomplete or incorrect, how it is handled depends on the validation logic you build using GeoPostcodes’ address data.
Our datasets allow you to check whether an address exists, identify missing required components, and assess whether a complete, valid address can be constructed based on official postal and administrative structures. Your systems can then decide whether to flag, correct, or reject the input address.
Detecting missing data early in your workflows helps prevent costly downstream errors, failed deliveries, and data quality issues at scale.
Yes. Our solution supports bulk address validation, allowing you to verify addresses at scale.
With bulk address validation, teams can clean large datasets, detect missing data, and ensure accurate address records across systems.
By validating address data at entry and in batch processes, the service prevents costly errors such as failed deliveries, rework, and compliance issues.
Consistent address verification ensures accurate data, reduces incorrect address usage, and improves long-term data quality.
Yes. Our data can be used to check whether an address exists, confirms the complete address, and validates it against authoritative reference sources.
This helps teams confidently verify addresses before using them in logistics, billing, or customer communications.
Our address validation service relies on curated global reference data, including official postal data from reliable sources such as Correos de Mexico and Swiss Post, amongst others.
Using trusted address data sources ensures accurate data and consistent results across regions.
Our address management articles
