There are 22 patients on trolleys today at Mayo University Hospital - the third highest figure in the country.
The latest trolley figures from the Irish Nurses & Midwives Organisation shows University Hospital Limerick is the most-overcrowded with 37 patients on trolleys, 24 at Mullingar Hospital and 22 at Mayo University Hospital.
Meanwhile, the Castlebar hospital continues to treat the 4th highest number of Covid-19 patients nationally.
There are 34 Covid patients being treated at Mayo University Hospital, with 9 at Galway University Hospital, and 4 at Sligo University Hospital.
Nationally, the number of patients with Covid-19 in hospitals has fallen below 400 for the first time this year.
HSE figures show 397 people are being treated in public hospitals with the disease - of which 96 patients are in ICU.