Reference data for US
Address Autocomplete

Power your address autocomplete in the US and worldwide with reliable ZIP codes and address formats.

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.

Full customization

Improve your autocomplete experience with custom fields, personalize your forms and offer relevant suggestions at input.

What are the benefits of address autocomplete?

Improved data quality at input

Prevent typos and incomplete entries with validated, structured addresses at the moment of input.

Superior user experience

Reduce friction and guide users to accurate addresses with fast, reliable suggestions.

Increased conversion rates

Reduce drop-offs by suggesting accurate addresses and speed up checkout and sign-up.

What can you expect from our US Address Autocomplete Database?

41K

Verified ZIP codes

3K

Administrative areas

53K

Cities and towns

HOW DOES IT WORK

Global address autocomplete with self-hosted data in 4 steps

With GeoPostcodes’ data, your forms can easily auto-suggest enriched 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 system or form.

Validate at input

Auto-suggest addresses with a reliable reference database of ZIP codes and addresses.

Refresh

Frequent updates will keep your data always up-to-date.

HOW DOES IT WORK

Why use self-hosted data for your address autocomplete?

GeoPostcodesThird-party API
PriceFIXED COSTPER QUERY
Control over security, speed and latencyFULLNO
CustomizationFULLLIMITED
AnalyticsFULLLIMITED
Connection to 3rd party requiredNOYES
Integration into your softwareFULLNO

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

GeoPostcodes - Ecotransit logo
“GeoPostcodes’ global ZIP codes allow us to determine distances accurately. Thanks to their up-to-date database, we no longer have problems with missing locations, making our system much more efficient and reliable.”

Anjo Grebe

Consultant

“GeoPostcodes databases provide IATA codes, enhanced UNLOCODEs with port terminal data, addresses, and more – all on a global scale! This level of accuracy is essential for our mileage and CO2 emissions calculation.”
GeoPostcodes - Peter Wild CarbonCare

Dr. Peter Wild

Managing Partner

“GeoPostcodes’ Population data shows population forecasts over the next years. We can use it as a proxy to justify longer-term changes and downgrade postal code areas in terms of economic viability.”

Kousha Mazloumi

Director of Data Science

“The concept of the city receives different names or belongs to different hierarchical levels depending on the country. Using GeoPostcodes’ data gave us access to city definitions aligned with our customers’ expectations, saving us computation time.”

Kousha Mazloumi

Director of Data Science

GeoPostcodes - Logo_DB_Schenker
“The world is constantly changing. New localities and neighborhoods open up or become dispersed. It’s good to know that GeoPostcodes is keeping on top of those changes and providing us with updated information to work with.”
GeoPostcodes-GeoPostcodes-William chao picture

William Chao

Product Owner of Geographic Information Services

GeoPostcodes - Bark Logo
“The key aspect of working with GeoPostcodes has been their ability to provide customized data solutions. Their collaborative approach has made them an excellent partner in addressing our location data challenges.”

Kate Kilby

Senior Product Manager

GeoPostcodes - Opterrix-logo
“GeoPostcodes’ multi-level boundaries were perfectly aligned, enabling seamless integration with multiple secure cloud platforms. Our software can now provide more accurate visualizations for risk analysis and natural hazard monitoring.”

Dave Hamm

Project Manager

“Countries like Brazil or China are particularly strict with their customs validation. GeoPostcodes’ ZIP codes and Enhanced UNLOCODES database are aligned with national regulations, ensuring seamless transportation and compliance.”
GeoPostcodes - Kavian Ranjbar

Kavian Ranjbar

Data Governance Specialist

“If you’ve got a business where locations are a big part of it and you’re looking to avoid the large costs that can be involved in using APIs, GeoPostcodes’ on-premise database is definitely worth considering.”
GeoPostcodes-Nick Baugie

Nick Beaugié

Senior Software Engineer

Global Location Databases

Comprehensive location data products serving businesses, and
organizations worldwide with accurate, up-to-date geographic information.

Postal Code Database

Global dataset containing all administrative divisions, cities and zip codes.

Key features

  • 247 Countries
  • 9,9M Coordinates
  • 9,3M Postal Codes
  • 400 Time zones
  • 4M Cities and Towns
  • 116K UNLOCODES

Specifications

  • Coverage: Global
  • Format: CSV, ASC, DAT, GML, GeoJSON, KML, Shapefile (SHP)

Boundary Data

A global dataset of polygons representing postal codes and administrative areas.

Key features

  • 247 Countries
  • Up to 6 levels
  • 1,7M boundaries
  • High-precision
  • 245K Admin areas
  • Visualization

Specifications

  • Coverage: Global
  • Format: GeoJSON, Geopackage, KML, Shapefile (SHP)

Population Database

Global population estimates at postal code and administrative level covering a span of 55 years: past, present, and future.

Key features

  • 247 Countries
  • 243K Admin areas
  • 55 year span
  • Yearly updates
  • 645K ZIP codes

Specifications

  • Coverage: International
  • Format: CSV, ASC

Address Database

International dataset with all administrative areas, cities, streets, and relevant postal codes.

Key features

  • 81 Countries
  • 299 languages
  • 26,5M streets
  • 400 time zones
  • 9.3M ZIP codes
  • 4M cities

Specifications

  • Coverage: International
  • Format: CSV, ASC, DAT, GML, KML, Shapefile (SHP), GeoJSON

Related use cases

From address validation to market analysis, our postal code data powers
key operations

Global Postal Code Coverage

247 countries and territories with standardized formatting and reliable geographic information.

Related Countries

Frequently Asked Questions

US address autocomplete is a feature that suggests complete, valid addresses as a user types. It reduces input errors by matching partial entries with real postal addresses. When powered by high-quality reference data, it ensures that each suggested address follows official US formatting and can be used confidently in shipping, checkout, or identity workflows.

US address autocomplete improves data accuracy by preventing incomplete, misspelled, or incorrectly formatted entries from being submitted in the first place. The system uses structured reference data to match user input with verified US address components such as street names, cities, and ZIP codes. This ensures that organizations store clean, standardized address data from the moment of capture.

Address autocomplete helps users enter valid-looking addresses quickly. Address validation checks whether an address is correctly structured. Address verification confirms whether the address actually exists and can be used for delivery. When combined, these three processes help businesses create a reliable end-to-end address capture workflow supported by accurate postal reference data.

Companies use US address autocomplete to reduce user friction, minimize typing, and prevent failed deliveries. Faster data entry improves conversion rates, while accurate address suggestions reduce manual corrections. This is especially valuable in e-commerce, logistics, fintech, and marketplaces where clean, standardized addresses are essential for customer experience and operational success.

GeoPostcodes provides the authoritative reference data that powers US address autocomplete. Our datasets include postal codes, cities, administrative divisions, and street-level information structured for high-performance matching. Companies integrate this data into their own autocomplete engines or APIs to deliver fast, accurate address suggestions at scale.

Yes. A strong autocomplete solution can surface both residential and commercial addresses by relying on complete reference datasets. With the right data, systems can map each suggested address to the correct locality, administrative unit, and ZIP code, ensuring that organizations capture all relevant address types with consistency.

Accurate autocomplete requires frequent updates to reflect street name changes, new developments, ZIP code adjustments, and administrative updates. GeoPostcodes refreshes its global and US datasets quarterly, ensuring that suggested addresses match the most current postal and administrative structures.

Many businesses pair US address autocomplete with global autocomplete solutions to cover international operations. GeoPostcodes supports this by offering standardized datasets for 247 countries, enabling companies to maintain consistent address capture across both US and international markets.

US address autocomplete can be integrated into CRMs, ERPs, e-commerce platforms, and custom applications. Teams typically use a lookup API, a search engine, or their own autocomplete logic connected to a structured postal database. GeoPostcodes provides data formats—including SQL, CSV, and API-ready structures—that developers can use to build fast, reliable autocomplete functionality.

High-quality reference data ensures that autocomplete suggestions are accurate, current, and aligned with official postal records. Poor data leads to incorrect suggestions, validation failures, and delivery issues. GeoPostcodes solves this by offering standardized, well-maintained datasets that help companies capture clean addresses from the start and support downstream processes such as validation, verification, routing, and analytics.

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Deploy reliable location data for address autocomplete

Learn how to power your address autocomplete through reliable data with our expert guides.