There are 50 people waiting for hospital beds today.
The trolley and ward watch figures from the INMO shows 21 of these are in Dublin, with the remainder at hospitals across the country.
Junior Minister Kathleen Lynch has defended the policy of moving patients in hospital emergency departments onto trolleys in wards.
The HSE has implemented the policy for the busy Wwinter period.
It is part of a set of measures to ensure overcrowding does not surge immediately after the Christmas holiday period as has happened in previous years.