Located in
Morris County
Lake Hopatcong Post Offices
Here are all Lake Hopatcong NJ post office locations. There are many post offices in or around Lake Hopatcong, New Jersey to choose from. Below is the location of each Lake Hopatcong post office. Get the most up-to-date post office hours in Lake Hopatcong. Find phone numbers and map out the exact location of the post office you are looking for.