CTP by city not address

Hi,

I want to create a CPT to be able to list teachers. The problem I have is that I dont want the teachers to enter their exact address for security reasons.

I would like teachers to be listed by city only. How would I do to take out the street adress from the form but still have the feature to locate them by city?

I tried to do it and I was only able to make the address fill out space not required.

Please let me know!

Thank you so much you guys are the best.