They had arrived in Mountrath two weeks ago.
Around 15 caravans that were parked illegally in a vacant car park in a Laois have left.
An enforcement notice was issued by Laois County Council two weeks ago - giving those on the site until today to remove their trailers.
Gardai in Laois say they visited the area a number of times last week following complaints from locals.
As the location is on private land - authorities remain unsure about how this will be prevented in the future.