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Postal, ZIP, and Neighborhood Boundaries as GeoJSON — One API Call

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US, UK, and Canada coverage with 99.8% uptime. Trusted in production by multi-billion-dollar industry leaders and 200+ teams. Free tier. Sign up in minutes.

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Contact Us
Contact Us

  • "On Groundworks.com and our other brands, we use Boundaries.io to show a visual representation of our service areas. By using Boundaries.io, we're able to condense that into a much smaller GeoJSON object that loads fast and still looks good."

    Steve ‘Berto’ Bertolacci, Director of Data Enablement

  • "My experience so far with Boundaries API team has been pleasant. Boundaries io serves the client needs — we use it to display zip codes in an area for a particular dealer."

    Abhishek Gairola, Project Manager, RAPP

Features

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View All
  • Global

    Global

    Access accurate boundary and address data for the USA, UK, and Canada — with more regions coming soon.

  • Fast & Reliable API

    Fast & Reliable API

    Built for speed and stability, our API delivers real-time results you can depend on, every time.

  • Easy Integration

    Easy Integration

    Seamlessly connect with your app in minutes using clear documentation and multi-language support.

  • GeoJSON & TopoJSON Formats

    GeoJSON & TopoJSON Formats

    Get clean, developer-ready data in both GeoJSON and TopoJSON formats for mapping and analysis.

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