Zip codes do not have a one to one relationship to cities in the US. It's a common misconception. It's true about 90% of the time, but there are a lot of outlie

Zip codes do not have a one to one relationship to cities in the US. It's a common misconception. It's true about 90% of the time, but there are a lot of outliers. I used to work with GIS data and there are a ton of exceptions.