According to the 2015 census , it has a population of 28,799 people .
Sirawai , officially the Municipality of Sirawai , is a 4th class municipality in the province of Zamboanga del Norte , Philippines .
According to the 2015 census , Sirawai has a population of 28,799 people .
Sirawai , officially the Municipality of Sirawai , is a 4th class municipality in the province of Zamboanga del Norte , Philippines .