Guide to Finding Zip Codes in a Radius on FreeMapTools
Click on Find ZIP Codes Inside a Radius
Enter the radius you wish to include in miles or kilometers in Step 1 and the postal code or coordinates that will be the center of the radius in Step 2
Click on Search
Click on Toggle CSV or New line to ensure all the zip codes are on their own line
Click on Copy To Clipboard
Login to Lead Prosper and navigate to your campaign.
Click on the Edit cog next to the individual buyer you wish to edit, or scroll down the Campaign Overview window and click on View filters.
Click on Add next to the buyer needing the filter
Click on the dropdown menu and choose your postal code field
Paste the zip list you copied from Free Map Tools
Click on Save, and you're done!