Tallaght and the roads around Dublin Airport have been named two of the cleanest parts of the country.
The areas were found to be cleaner than European Norms in the latest Irish Business Against Littter survey.
IBAL spokesperson Conor Horgan called Tallaght's placement at the top of the survey "A spectacular result" considering it was once a litter blackspot.
There was mixed news for the capital in the survey - which has seen the City Centre decline to "moderately littered" but the North Inner City has recorded it best ever result since it was first surveyed in 2011.
IBAL spokesperson Conor Horgan praised Dublin City Council for its efforts in the north inner city “A starting point on the road to cleanliness is to concentrate on very bad sites and there are signs the Council are doing this.”
The report noted while the main shopping street areas of Henry Street, O’Connell Street and Grafton Street presented particularly well, there were litter blackspots on Mountjoy Street, Hanover Lane and Capel Street.
According to the survey, 2017 saw falls in the prevalence of fast food wrappers, plastic bottles and dog fouling. Chewing gum, cigarette butts and cans continue to be major sources of litter.