The straight-line distance between any two US ZIP codes.
How this tool works
Enter two 5-digit ZIP codes. Each is matched to its ZCTA (ZIP Code Tabulation Area) center point from Census gazetteer data, and the great-circle distance between the two centers is computed with the haversine formula. Because ZIP codes are areas, the figure is center to center: for neighboring codes the real edge to edge distance can be much less.
What you can do with it
- Estimate distances for service areas, delivery zones, and coverage rules
- Check whether two ZIP codes fall within a distance-based eligibility limit
- Batch-check distances for a handful of code pairs quickly
- See the direction of travel between the two areas
Why use it
Countless business rules are written as within X miles of ZIP code Y. This computes exactly that number from official center points, without a geocoding account.
Data sources and methods
Related tools
These tools are provided for educational and informational purposes only. Results are computed from simplified public data and standard formulas, and may differ from surveyed or official values. No warranty is given as to accuracy or completeness, and the tools should not be relied on for navigation, legal, or commercial purposes.