The latest figure was announced by Amanollah Qaraei-Moqaddam, a long-time social analyst, in an interview with the state-run news agency ILNA.
Qaraei-Moqaddam blamed the economy instability and families financial perils as causes of the high figure.
One contributing factor to the high level of homeless women roaming the streets was that women were being marketed, he said.
He added that the average prostituting age was between 11 to 17 years of age.
The reason for this is the very large number of street-girls who entered the prostitution market because of being orphans, maltreated, losing a parent, psychological torment, or restrictions placed on them by their families, Qaraei-Moqaddam said.