If you didn't know ... 495 Productions -- the company that produces "Snooki & JWoww" -- had trouble finding a location to film Season Two ... until the small town of Manchester stepped up to the plate.
TMZ spoke to some of S&J's new neighbors who say they had no warning the 3 ring circus was rolling in -- and when they called the town to complain ... they were told the mayor already signed off, so too bad.
They were also told 495 would go door-to-door to address the situation, but several neighbors tell us that hasn't happened ... even though they've already seen crew members setting up equipment.
Calls to 495 have not been returned.
(NOT SO) FUN FACT: Manchester Township is also where the Hindenburg disaster went down in 1937.
Oh, the humanity.