In giving its latest estimates, OCHA said 20.2 million people have been affected by the floods in Pakistan, with 14 million in need of immediate humanitarian aid.
Over 1.9 million homes have been destroyed or damaged and at least seven million people are currently without shelter, it said. Parts of Sind Province are still under water.
Throughout September and October, food rations have been supplied to an estimated 8.8 million people, according to OCHA. High-energy biscuits and Ready to Use Supplementary Food is being provided for around 2 million children.
Also, since the start of the response, essential medication has been provided to cover the potential health needs of 5.15 million people.
OCHA reports that the emergency shelter needs for an estimated 3.4 million people have been met, while 3.7 million people have access to clean water on a daily basis.
At the same time, the Office says, the Response Plan for Pakistan is still only 36% funded.