Over 700,000 people were awaiting medical treatment at the end of last month.
Data from the National Treatment Purchase Fund shows almost 600,000 people were awaiting a first outpatient consultation.
A further 87,000 people were waiting on inpatient or day case treatment, with almost 24,000 in line for an endoscopy appointment.
Over 100,000 patients have a procedure planned and more than 74,000 of those have received their dates.
At Letterkenny University Hospital, 1,218 people were awaiting an inpatient or day case appointment, down 44% when compared to the same period last year.
Meanwhile, the number of patients needing an outpatient appointment is up 6% on figures from September 2023 to 16,431.
