 dÃºn laoghaireârathdownelectoral amendment act 2009 â schedule () is a county in ireland. it is part of the dublin region in the province of leinster. it is named after the former borough of dÃºn laoghaire and the barony of rathdown. dÃºn laoghaire-rathdown county council is the local authority for the county. the population of the county is 206,261 according to the 2011 census.census 2011 â county dun laoghaire-rathdown overview ==geography and political subdivisions== dÃºn laoghaireârathdown is bordered to the east by the irish sea, to the north by the local government area of dublin city council, to the west by south dublin and to the south by county wicklow. university college dublin and dÃºn laoghaire institute of art, design and technology are located in the county. it is one of three smaller counties into which county dublin was divided in 1994. located to the south-east of dublin city, its county town is dÃºn laoghaire. it is one of the four constituent parts of the dublin region. it was created in 1994 by merging the areas under the jurisdiction of the corporation of dÃºn laoghaire and the south-east part of the former dublin county council. additionally, the powers of the former deansgrange joint burial board were subsumed into the new authority. as part of the dublin region, dÃºn laoghaire&ndash;rathdown is wi
Counties_of_the_Republic_of_Ireland County_Dublin DAon_LaoghaireaRathdown Local_administrative_units_of_the_Republic_of_Ireland