Poona Bayabao is a 5th class municipality in the province of Lanao del Sur. Located at the heart of Lanao del Sur Province. It is about 37 kilometer away from the capital city of Marawi. To emphasize Poona Bayabao is derived from two Maranao words "Poona" means the beginning and "Bayabao" denotes ethnical standards. Thus we can say Poona Bayabao implies the place where the ethnical standard of Maranao people begun. This is therefore compromise the 3 Royal Sultanate House of Lanao del Sur the Sultanate House of Rogan, Taporog and Bansayan.

According to the 2000 census, it has a population of 17,390 people in 2,452 households.

Poona Bayabao is politically subdivided into 25 barangays.

The municipality has a clay loam soil type.

The people of Poona Bayabao (Maranaos) is famous of creating and baking giant food. The Giant Tiatag, is one of the maranao delecacies which only few maranao can made. Another maranao food "Dodol", is a maranao home made chocolate. Another is "Paburut", the delicious maranao icing ball. Lastly,"Burua" the maranao cup cake.

The Municipality enjoyed the priveledge of 24 hours power supply.

The climate is classified as Type IV which is characterized by more or less even distribution of rainfall throughout the year. Dry season is observed during the months from January to March and maximum rain period is from May to October.