After reading Finding Zip Codes in a Specific Radius, I set up phpZipLocator. It is easy to use, but I don’t know if it works.
There are 107 zip codes within 1 mile of 12345. That doesn’t seem correct.
Does anyone know if this solution is reasonably accurate? Is the problem just with short distances?
Is there a better solution or a better way to use it (for example with a different list of zip codes)?
Need to get all zip codes within a given zip.
Working in PHP and MySQL (and Javascript, if necessary).
I use http://zips.sourceforge.net. Works great for me!