The population of Herseytown Twp City is roughly 8,020 people. The population was not dense at all, but it was still a little bit crowded. The area around the township was largely rural, with an agricultural and forest-based economy. Herseytown has a lot of water, too. Mud Brook is an easy paddle to its confluence with the Penobscot River East Branch. While there's no official launch site, I did manage to get in during the April high water. Unfortunately, Mud Brook will disappear in August 2014.
The ZIP code for Herseytown Twp, ME is 04777. It belongs to the Penobscot county. There are also other acceptable ZIP codes for the city. However, if you're trying to find the address of a specific person, you may have to go by the full name of the city. This will save you time and effort.