What is the population of Siay?

The population of Siay is 41,572.

Where is Siay located?

Siay is located at latitude 7.8000000 and longitude 122.8833300. It is in Philippines.

The area of Siay is 313.66 km².

Siay is in the Asia/Manila time zone.

The population of Siay has increased from 14,088 (1960) to 41,572 (2015), a change of 195.1%.

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

Population	41,572
Country	Philippines
State	Zamboanga Peninsula (Philippines)
County	Province of Zamboanga Sibugay
Postal code	7006
Phone Area Codes	62
Area	313.66 km²
Official name	Municipality of Siay
Latitude & Longitude	7.8000,122.8833
Establishment	December 28, 1956 (69 years ago)
Time Zone	UTC+08:00
Local time	10:07:50 (26th May 2026)

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

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Official website of Siay

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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