Siay, Zamboanga Peninsula

Siay: Municipality of the Philippines in the province of Zamboanga Sibugay

About

Quick Facts about Siay

Population : 41,572
Country : Philippines
State : Zamboanga Peninsula (Philippines)
County : Province of Zamboanga Sibugay
Head of government : mayor
Postal code : 7006
Phone Area Codes : 62
Area : 313.66 km2
Official name : Municipality of Siay
Establishment : December 12, 1956 (68 years ago)
Time Zone : UTC+08:00
Local time : 04:08:09 (19th December 2025)

Geography

Siay is located at 7°48'0"N 122°52'60"E (7.8000000, 122.8833300). It has 2 neighbors: Payao and Diplahan.

Siay map

Click "full screen" full screen map icon to open full mode. View satellite images

Siay has 2 neighbours.

  • Payao municipality of the Philippines in the province of Zamboanga Sibugay
  • Diplahan municipality of the Philippines in the province of Zamboanga Sibugay

Demographics

Year Population % Change Method
1960 14,088 - census
1970 32,922 57.21% census
1975 37,816 12.94% census
1980 17,004 -122.39% census
1990 24,689 31.13% census
1995 29,303 15.75% census
2000 32,844 10.78% census
2007 33,902 3.12% census
2010 38,229 11.32% census
2015 41,572 8.04% census

Siay

Other places with the same name (2)