Athens

Athens is a nearby city within a few hours' drive of the city where GPF Software is located. Its exact size and location relative to GPF's home city are unknown. It is primarily known in the comic as the new home of Antony's Pizzeria.

As evidenced by the Wikipedia disambiguation page on Athens, the name for the fictional GPF location was chosen because it is a common city name across the United States, making the exact location of GPF Software's home town nebulous.