Galway University Hospital is the second most-overcrowded in the country again today, with 37 patients on trolleys.
Limerick University Hospital is topping the trolley watch, with 53 people waiting for a bed.
There are 17 patients waiting for a bed at Sligo University Hospital, 14 at Mayo University Hospital and 5 at Portiuncla in Ballinasloe, while the total nationally today is 544.
HSE CEO Tony O’Brien yesterday apologised to patients waiting on trolleys, describing the numbers as unacceptable, but warned that unless planned health reforms go ahead, what is being experienced now will look like a picnic in a few years' time.
Meanwhile, the hospital overcrowding crisis is putting pressure on ambulances services as paramedics say they have to wait to discharge patients to emergency departments.
The National Ambulance Service Representative Association says there have been times when paramedics have waited up to an hour-and-a-half for patients to be admitted to acute hospitals.