The number of people accessing emergency accommodation in the month of July was up 19 on the previous month, according to figures released by the Department of Housing.
The figures show there were 9,891 people living in hotels, bed and breakfasts and family hubs in July, up from 9,872 people in June.
The figures consisted of 6,024 adults and 3,867 children.
The number of adults was down 24 from the previous month, but 43 more children were homeless in July than in June.
Yesterday, Minister for Housing Eoghan Murphy said he expected the figures to show an increase from the June figures.
In a statement today, he said: "The numbers presenting to homeless services in the Dublin region remains a concern, despite significant progress in exiting individuals and families from emergency accommodation into independent tenancies."
He added that a significant number of new homes are needed.
Focus Ireland has warned that the Government is now "further away from getting on top of housing and homeless crisis" following the release of the latest figures.
The organisation said that while Mr Murphy is right to draw attention to progress in some areas, the continued rise in homelessness means new and better policies are needed.
Meanwhile, new Focus Ireland figures for Dublin show that four families became homeless every single day last month in the capital city.
In total, 122 families with 270 children became newly homeless in Dublin in July.
The organisation says this is the single highest monthly total number of families since it began recording the figures six years ago.
The Ombudsman for Children has said housing should be seen as a social need rather than a commodity.
Speaking on RTÉ's Morning Ireland, Niall Muldoon said the tide of homelessness needed to be stemmed before the problem could be addressed.
He said the Government has had the time to create a much more viable rental market for people and that more could be done to address the problem.
He also said that landlords could be told that when issuing final notices, a phone number should be put on the letter to direct people to seek help if they are in danger of becoming homeless.
Mr Muldoon added that funding should be provided to prevent these people from becoming homeless.
INTO General Secretary General Secretary Sheila Nunan said teachers are relaying to her that homelessness is having a definite negative impact on children's learning.
Speaking on the same programme, Ms Nunan said a child's well-being can be affected by a number of issues such as longer journeys to school, tiredness, lateness, poor diet, hunger, engagement in homework, behaviour and their general social interaction.
She also said that the normal afterschool interaction is not available to homeless children who are living in emergency accommodation.
She said the rituals of childhood, such as birthday parties and playdates, were not available and that children were subtly absorbing that.
