Need a page selection plugin by service area

I have a service business with six offices throughout the midwest, I’d like to have a screen asking for the users zip code and then return them the wordpress page or external link that gets them to the proper office. I see there are a few mapping location plugins but those seem to just use the customers address versus the location address which in some cases won’t work for us because of our coverage map. Is there a way to just enter a table of zip codes and the result link they should get when entered? Thanks for any help.