ZIP Code Radius Finder

Find all ZIP codes within a specified distance from any US postal code.

27 ZIP Codes within 25 miles of 78666

Center: San Marcos, TX

ZIP Code City State Distance Action
78666 San Marcos TX 0.0 mi View
78655 Martindale TX 9.6 mi View
78656 Maxwell TX 10.3 mi View
78670 Staples TX 11.5 mi View
78640 Kyle TX 12.2 mi View
78622 Fentress TX 14.1 mi View
78130 New Braunfels TX 14.2 mi View
78676 Wimberley TX 15.0 mi View
78132 New Braunfels TX 15.1 mi View
78623 Fischer TX 15.3 mi View
78610 Buda TX 16.0 mi View
78133 Canyon Lake TX 16.0 mi View
78619 Driftwood TX 16.2 mi View
78661 Prairie Lea TX 17.8 mi View
78644 Lockhart TX 18.4 mi View
78652 Manchaca TX 18.8 mi View
78638 Kingsbury TX 19.0 mi View
78123 McQueeney TX 19.8 mi View
78739 Austin TX 21.0 mi View
78737 Austin TX 21.2 mi View
78748 Austin TX 21.4 mi View
78747 Austin TX 22.0 mi View
78749 Austin TX 24.0 mi View
78648 Luling TX 24.2 mi View
78155 Seguin TX 24.3 mi View
78124 Marion TX 24.7 mi View
78745 Austin TX 24.9 mi View

How to Use the ZIP Code Radius Finder

Enter any US ZIP code and select a radius in miles to find all postal codes within that distance. This tool uses the Haversine formula to calculate accurate distances between ZIP code centroids.

Common Use Cases

  • Marketing campaigns: Target customers within a specific radius
  • Delivery zones: Define service areas for businesses
  • Real estate: Find properties in nearby ZIP codes
  • Demographic analysis: Study populations within a radius