Hi, @logantpowell - here's my example: a government customer sells a type of city license on their website but it's only necessary for people who live within city limits. Too many people don't know this and attempt to buy the license even though they live outside of city limits (but, they have the same city name and postal code). So, I cannot use postal code alone to determine if they are in city limits. The website needs to alert the user that they are not required to make that purchase since they are outside of city limits (otherwise, the city has to refund those purchases and it's a hassle).
The point is that if you look at Google maps for a city, you can see the boundary lines for the city limits. So, the data is out there. What I'm trying to figure out is how to check if an address is located within city limits and zip code alone won't do it. I need to get the lat/lng for the user's address, then check to see if it's in the city limits, then warn them that they don't need to do the purchase if they are outside of city limits.
Sorry I'm not being more succinct. :-) I hope that helps, though?