Self-hosted data for USPS Address
Verification Tool
Validate US addresses with accurate, standardized reference data for validation at input and bulk verification.
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
What’s address verification?
Address verification checks that an address is real, complete, and follows local postal standards. It’s used to keep customer data accurate, avoid shipping mistakes, and improve overall efficiency. GeoPostcodes data helps you correct, standardardize, and validate addresses worldwide.
What are the benefits of address verification?
Improved accuracy across systems
Customers maintain consistent, verified address records worldwide, reducing duplicates, errors, and mismatched regions across CRMs, ERPs, and logistics systems.
Error-free shipping and compliance
Verified postal and UNLOCODE data prevent shipment delays, customs fines, and location mismatches, saving time and operational costs across international networks.
Reduced manual & maintenance costs
Automated address validation replaces manual location checks and updates, helping enterprises save hundreds of hours and significant operational expenses annually.
Why perform international address verification?
- Regulatory & Tax compliance
- Data enrichment & Location intelligence
- Customer experience & conversion optimization
- Customer data accuracy & CRM integrity
- Logistics & shipping compliance
- Market research & panelist validation
Why choose GeoPostcodes 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.
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.
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
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.
Frequently Asked Questions
A USPS address verification tool is a software solution that checks whether a USPS address exists, is correctly formatted, and matches the official USPS address database. While these tools automate validation, GeoPostcodes provides the reference data that powers such systems, ensuring every street address and postal address aligns with verified postal standards.
The USPS address verification process compares submitted street addresses against the official USPS address database to confirm their accuracy and deliverability. A USPS address verification tool validates, formats, and corrects each record. GeoPostcodes’ address reference data supports this process by delivering complete, structured, and standardized address datasets that make USPS address verification more reliable and efficient.
USPS address verification helps businesses maintain accurate address data, prevent undeliverable mail, and improve customer satisfaction. Verified postal addresses reduce shipping errors and operational costs. Many organizations use tools backed by GeoPostcodes’ reference data to ensure that every USPS address they manage is valid, standardized, and compliant with U.S. postal formatting.
A USPS address verification tool focuses on U.S. street addresses validated through the United States Postal Service, while global address verification covers multiple countries. GeoPostcodes’ global address data extends verification beyond the U.S., providing the same level of accuracy for international addresses using data from over 1,500 authoritative sources worldwide.
Yes. GeoPostcodes provides comprehensive reference data that helps organizations verify, standardize, and enrich USPS addresses. Although GeoPostcodes is not a USPS address verification tool itself, its datasets serve as a trusted foundation for verifying postal addresses and maintaining accurate address data across systems.
Organizations that use GeoPostcodes’ reference data for USPS address verification gain higher data accuracy, cleaner mailing lists, and improved logistics efficiency. The data helps USPS address verification tools identify invalid street addresses, correct postal inconsistencies, and maintain standardized postal addresses across all platforms.
Companies in logistics, e-commerce, and data management use USPS address verification solutions powered by GeoPostcodes’ address reference data. These organizations rely on accurate USPS address and postal address information to streamline shipping, reduce delivery failures, and keep customer databases consistent.
GeoPostcodes compiles, cleans, and standardizes address data from the official USPS address database and hundreds of other authoritative sources. This process ensures that every USPS address record is validated, properly formatted, and up to date, providing the high-quality foundation needed for accurate USPS address verification.
Yes. In addition to supporting USPS address verification, GeoPostcodes provides verified datasets for over 247 countries. Its reference data covers international addresses and postal addresses worldwide, enabling organizations to unify address verification processes across both U.S. and global operations.
GeoPostcodes is a trusted provider of global address data that ensures consistency between USPS addresses and international addresses. By supplying reliable reference datasets, GeoPostcodes enables businesses to perform both USPS address verification and international validation with precision, accuracy, and full postal compliance.
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