Postal Code Boundaries
API Information
Version:v1.0.1
Region:US
Used for:Enabling spatial queries and regional analytics by integrating ZIP Code boundary data into applications for logistics, marketing, resource planning, and service delivery optimization.
Overview
The LightBox Postal Code Boundaries API delivers polygonal boundaries for U.S. ZIP Code areas as defined by the U.S. Postal Service (USPS). These boundaries help power a wide range of spatial and operational workflows, including service area optimization, delivery zone planning, demographic analysis, and market segmentation. The API supports lookups by ZIP Code ID, tile and bounding box queries, and type-ahead search for interactive user experiences.
Key Capabilities
- ✓Search ZIP Code boundaries using type-ahead autocomplete or ZIP Code ID
- ✓Retrieve boundary geometry as WKT for rendering or spatial analysis
- ✓Overlay postal code boundaries on interactive maps using tile or bounding box queries
- ✓Integrate ZIP Code layers into geospatial tools for routing, territory planning, or customer segmentation
Scope
Boundary Data
- ZIP Code Areas (Postal Code Boundaries)
Source
- U.S. Postal Service (USPS)
Additional Information
Postal Code Boundaries Overview
Learn about the key features and use cases of the Postal Code Boundaries API.
Postal Code Boundaries Reference
Explore the technical details of the Postal Code Boundaries API endpoints.
Postal Code Boundaries Release Notes
View the latest updates and changes to the Postal Code Boundaries API.