Not specifically and yes… let me explain.
Many of the premium templates contain a search field. The search provided is a keyword search which will query many of the fields within Connections zipcode included. So if you type in a zipcode, it will return every entry that has that zipcode in any of the fields that Connections queries. You can limit this to the zipcode field only if you wish on the Connections : Settings admin page under the Search tab.
What this will not do is a radius search or a nearby search.
I hope that helps.