The latest homeless figures show a slight drop with the numbers in emergency accommodation down by 1% in May compared to the previous month.
There were 7,991 men, women and children homeless last month across the country, which is 91 fewer than April.
The number of single adults which had been increasing to record levels earlier this year has dropped for the third consecutive month and is at 4,502, which is a monthly decrease of 31.
However, the number of single adults is still up by over 5% on May 2020.
The number of families in emergency accommodation is 928 which is up by three on the previous month but is down by just under 24% over the year.
The number of children is 2,148 - down by 45 in the monthly figures - and is the lowest number in five years.
The Simon Communities of Ireland said that homelessness is still at "crisis levels".
The charity said there is "no quick fix" but it is important there is a commitment to do so by Minister for Housing Darragh O'Brien.
Simon spokesperson Wayne Stanley said: "In May, there were 7,991 men, women and children in homelessness. It's a welcome fall year on year but more than twice the number in homelessness in 2014 when the then housing minister described homelessness as at crisis levels."
He added that it was also important to remember the figures "do not truly capture" the full scale of the crisis as rough sleepers and people living in squats, direct provision and women’s shelters are not included in the statistics.
"We know that many find themselves in this position due to a lack of affordable and secure accommodation. Our quarterly Locked Out report shows that this is the case in both urban and rural communities around the country," Mr Stanley said.
Meanwhile, Focus Ireland called on the Government to issue a specific strategy to address family homelessness in its forthcoming plan.
CEO Pat Dennigan said: "More families becoming homeless is always appalling and wrong, but for it to happen at a time when many are not yet fully vaccinated from Covid-19 is also alarming from a public health perspective.
"The decision of the Government to lift eviction protections for families before the pandemic is over is both dangerous and uncompassionate. Focus Ireland believes the eviction moratorium should be reintroduced for six months as the country gradually begins to open up."