Over 13,000 people in the country are without permanent accommodation.
A charity that helps the homeless says last night's cold snap will have affected people who are sleeping rough the most.
Latest figures from the Department of Housing show a total of 13,179 people were homeless in October, including 3,991 children.
Just under 200 of those were in the midlands - 59 in Westmeath, 49 in Offaly and 34 in Laois.
There were also 55 children who were homeless in the region last month.
Cork Simon says Christmas is the most difficult time of year for people without permanent accommodation.
Paul Sheehan from the charity says people living on the street find it impossible to stay warm:
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