I don't see any recent posts addressing this issue, so here goes.
I have a potential client that has 65 restaurant locations. I'll be capturing zip codes at sign up. Mail Chimp allows you to segment by zip and set a geo radius, say 10 miles.
Any way to do this with Campaign Monitor?
If this is a non-negotiable for client, I'd be interested in hiring someone to do this for me.
You are right-- that would be a handy feature! Unfortunately, it's not something that's possible to do in CM right now. I have gone ahead and added a vote on your behalf for it.
We are careful to count all our customers' votes (see https://www.campaignmonitor.com/blog/post/4233/feedback-tool-feature-suggestions), so we'll consider it when planning what features to add in the future, and we'll be sure to post here if and when it's possible.