Why it matters: As the number of reunions grows, such homelessness rates have the potential to significantly strain non-governmental organizations already plagued by limited resources.

Some 41 family reunifications have been completed on Biden’s watch. With an estimated 2,100 families still separated, that’s too small a sample to gauge with certainty the extent of the housing needs moving forward.

But sources said it could put the rate of those in need at anywhere from 30% to 50%.

Behind the scenes: NGOs assisting the administration with these reunions have, at times, had little heads up about the housing needs of the families, and have had to scramble last minute to find a place for them to stay.