CodePostalPro is a global reference for finding postal codes and exploring related geographic data. Its search tools let users look up a ZIP or postal code by city, locality, or region, with accents ignored. The site features country pages for the United States, Spain, France, Germany, Austria, Algeria, Tunisia, and Morocco, and says additional countries are available through its free API.

The service collects and standardizes publicly available information, including postal and ZIP codes, cities and localities, administrative divisions, and coordinates where available. Each record is linked to a documented source and a verification status, with data described according to the conventions of each country. CodePostalPro also provides country coverage information, data sources, methodology, and a way to report errors. Its coverage includes GeoNames data attributed under the CC BY 4.0 licence.

The site emphasizes that postal codes may change and that national postal operators remain the official reference. CodePostalPro is designed to make geographically organized postal information easier to search while showing where its data comes from.