Cavan and Monaghan have both been listed as "moderately littered" in the latest Irish Business Against Litter survey.
The results show Cavan remains at 23rd place but Monaghan has dropped two places to 27th.
In Monaghan, The Diamond Centre remains a heavily littered site, with heavy levels of dumping at recycling and clothing banks at McNally's carpark and a grass area beside Applegreen on the Clones road.
In Cavan, the SuperValu shopping centre, the Tesco car park and Church Street were in need of improvement.
However, inspectors said a storage area off Main Street had major levels of litter and was by far the most heavily littered area in the town.
Kilkenny is the cleanest city in the country.
It gets the gold star in the latest Irish Business Against Litter survey, followed by Killarney in second and Ennis and Tullamore.
But Ballymun in Dublin is the worst litter blackspot, with the North Inner City also seriously littered.
IBAL spokesperson, Conor Horgan says standards of cleanliness are slipping generally in towns and cities.