Zip Code Radius Map
Enter a zip code and distance — get a list of every zip code within that radius.
How to Find Zip Codes Within a Radius
Enter Your Center Zip Code
Type any US zip code (e.g., 90210, 10001, 60601) in the search field. The map will center on that location and show the zip code boundary.
Set Your Radius Distance
Choose from preset distances (5, 10, 25, 50, 100 miles) or enter a custom radius. The tool draws a circle from the center of your zip code extending outward.
View Matching Zip Codes
All zip codes that fall within (or overlap) your radius are highlighted on the map and listed in the results panel. The count updates in real-time as you adjust the radius.
Sort and Filter Results
Sort results by distance from center, zip code number, city name, or state. Click on any zip code to highlight it on the map and see its details.
Export Your List
Click “Export CSV” to download the complete list. The file includes zip code, city, state, and distance from center — ready for mail merges, CRM imports, or ad targeting.
5 Real-World Examples
Direct Mail Marketing Campaign
A dental practice in zip code 85251 (Scottsdale, AZ) wants to send new patient postcards to households within 15 miles.
Export the list, upload to USPS EDDM or a direct mail provider, and target only zip codes with demographics matching their ideal patient profile.
Sales Territory Assignment
A medical device company assigns sales reps by zip code. Each rep covers a 50-mile radius from their home office.
Export each territory list, import into CRM (Salesforce, HubSpot), and auto-assign leads based on their zip code.
Restaurant Delivery Zone Setup
A new restaurant in 02139 (Cambridge, MA) needs to define their delivery radius for DoorDash and Uber Eats integration.
Use the exported list to configure delivery platforms and ensure drivers know the exact coverage area.
Healthcare Network Coverage Analysis
A hospital system analyzes patient access by finding all zip codes within 30 miles of each facility to identify coverage gaps.
Export both lists, compare in Excel, and identify underserved communities for potential new urgent care locations.
Franchise Territory Protection
A franchise agreement grants exclusive rights to all zip codes within 10 miles of the franchisee's location in 33139 (Miami Beach, FL).
Export the list and attach it to the franchise agreement as Exhibit A, defining the exact territory boundaries.
US Zip Code Statistics
States with Most Zip Codes
Average Zip Codes per Radius
Based on typical urban/suburban density:
* Density varies by region. Urban areas have more zip codes per square mile than rural areas.
Zip Code Density by Major Metro Area
| Metro Area | Center Zip | 10-mi Radius | 25-mi Radius | 50-mi Radius |
|---|---|---|---|---|
| New York City | 10001 | 187 | 412 | 892 |
| Los Angeles | 90012 | 156 | 387 | 612 |
| Chicago | 60601 | 142 | 356 | 598 |
| Houston | 77002 | 98 | 245 | 412 |
| Phoenix | 85004 | 76 | 178 | 287 |
| Philadelphia | 19102 | 134 | 312 | 567 |
| San Antonio | 78205 | 54 | 112 | 198 |
| Dallas | 75201 | 112 | 278 | 456 |
Zip code counts are approximate and based on ZCTA boundaries. Density varies by urban development patterns.
Understanding Zip Code Boundaries
What is a ZCTA?
The US Census Bureau creates Zip Code Tabulation Areas (ZCTAs) to represent zip code boundaries. Unlike USPS zip codes (which are delivery routes), ZCTAs are geographic areas with defined boundaries. This tool uses ZCTA data to show zip code boundaries on the map.
Whole Zip Codes Only
A zip code radius search returns whole zip codes — it doesn't split a zip code in half. If any part of a zip code boundary falls within your radius, the entire zip code is included. This means:
- The actual covered area may extend slightly beyond your specified radius
- Border zip codes are included even if only a small portion overlaps
- This is intentional for mailing and marketing purposes (you can't mail to “half” a zip code)
When to Use Circular Radius Instead
For precise circular boundaries without zip code boundaries, use our main radius map tool. This is better for:
- Defining service areas with exact distance limits
- Compliance with regulations requiring specific mile limits
- Geofencing applications
- International locations (zip codes are US-only)