I found an API link online that allows you to query zip codes within a certain radius. The link works as written (see below), but I’m having trouble adjusting the query to another zip code and radius. When I try, I get a “400 bad request” error.
Details (like screenshots):
Call found online (working): This was for a request of all zip codes within 30 miles of 95050: https://disq.us/url?url=https%3A%2F%2Fezcmd.com%2Fapps%2Fapi_geo_postal_codes%2Fnearby_locations_by_zip_code%2FGUEST_USER%2F-1%3Fzip_code%3D95050%26country_code%3DUS%26unit%3DMiles%3A-wf0tIYBp2uqHaXHyeK7VqBVPZ0&cuid=2095103
What I did was replace any instance of 95050 with another zip code to test, example 33431, but that returned the error:
I’ve also tried contacting the OP, but noticed he hasn’t responded to queries in 2 years, so I don’t have high hopes of hearing back.