Yep, Wicklow is split along the east-west spine, with the west Wicklovians looking upon the easties as virtual Dubs -- will take the equivalent of the sporting alchemist's magic to produce a formidable whole from that mixture.
Mustn't forget either, with no disrespect to the Wicklow folk in the slightest, but it was only split out into a separate county from Dublin and Carlow in 1606 -- the very last of the 32 Counties to be so designated.