Siay

Siay
Municipality of Siay
Flag of Siay
Official seal of Siay
Map of Zamboanga Sibugay with Siay highlighted
Map of Zamboanga Sibugay with Siay highlighted
OpenStreetMap
Siay is located in Philippines
Siay
Siay
Location within the Philippines
Coordinates: 7°42′20″N 122°51′51″E
Country Philippines
Region Zamboanga Peninsula
Province Zamboanga Sibugay
District 2nd district
Founded December 28, 1956
Barangays 29 (see Barangays)
Government
 • Type Sangguniang Bayan
 • Mayor Jarvis M. Acosta
 • Vice Mayor Julius M. Acosta Jr.
 • Representative Antonieta R. Eudela
 • Municipal Council
Members
 • Electorate 28,751 voters (2022)
Area
 • Total 313.66 km2 (121.10 sq mi)
Elevation
34 m (112 ft)
Highest elevation
222 m (728 ft)
Lowest elevation
−3 m (−10 ft)
Population
 (2020 census)
 • Total 40,585
 • Density 130/km2 (340/sq mi)
 • Households
10,096
Economy
 • Income class 2nd municipal income class
 • Poverty incidence
33.02
% (2018)
 • Revenue ₱ 216 million (2020)
 • Assets ₱ 298.4 million (2020)
 • Expenditure ₱ 222.4 million (2020)
 • Liabilities ₱ 120.5 million (2020)
Service provider
 • Electricity Zamboanga del Sur 2 Electric Cooperative (ZAMSURECO 2)
Time zone UTC+8 (PST)
ZIP code
7006
PSGC
IDD:area code +63 (0)62
Native languages Subanon
Cebuano
Chavacano
Tagalog
Website www.siaysibugay.gov.ph

Siay, officially the Municipality of Siay (Cebuano: Lungsod sa Siay; Chavacano: Municipalidad de Siay; Tagalog: Bayan ng Siay), is a 2nd class municipality in the province of Zamboanga Sibugay, Philippines. According to the 2020 census, it has a population of 40,585 people.

The municipality is located in the 2nd District and the eastern part of the province of Zamboanga Sibugay. It is 38 kilometers from Ipil, 220 kilometers to Dipolog, and 180 kilometers east to Zamboanga City. It is geographically situated within a map coordination of 741 east & 122* 53*west.

Siay is bounded from the north by the municipality of Diplahan, south by the Sibuguey Bay, west by the municipality of Kabasalan, and east by the municipality of Imelda.

Geography

Barangays

Siay is politically subdivided into 29 barangays. Each barangay consists of puroks while some have sitios.

  • Bagongsilang
  • Balagon
  • Balingasan
  • Balucanan
  • Bataan (Dacanay)
  • Batu
  • Buyogan
  • Camanga
  • Coloran
  • Kimos (Kima)
  • Labasan
  • Lagting
  • Laih
  • Logpond
  • Magsaysay
  • Mahayahay
  • Maligaya
  • Maniha
  • Minsulao
  • Mirangan
  • Monching
  • Paruk
  • Poblacion
  • Princesa Sumama
  • Salinding
  • San Isidro
  • Sibuguey
  • Siloh
  • Villagracia

Climate

Climate data for Siay, Zamboanga Sibugay
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) 31
(88)
31
(88)
32
(90)
31
(88)
30
(86)
29
(84)
29
(84)
29
(84)
29
(84)
29
(84)
30
(86)
30
(86)
30
(86)
Mean daily minimum °C (°F) 23
(73)
23
(73)
24
(75)
25
(77)
25
(77)
25
(77)
24
(75)
24
(75)
24
(75)
24
(75)
24
(75)
23
(73)
24
(75)
Average precipitation mm (inches) 61
(2.4)
55
(2.2)
75
(3.0)
81
(3.2)
145
(5.7)
189
(7.4)
189
(7.4)
197
(7.8)
162
(6.4)
181
(7.1)
115
(4.5)
70
(2.8)
1,520
(59.9)
Average rainy days 16.4 15.7 19.1 21.5 26.9 27.1 26.4 25.0 24.2 26.8 23.5 18.7 271.3
Source: Meteoblue

Demographics

Population census of Siay
Year Pop. ±% p.a.
1960 14,088 —    
1970 32,922 +8.85%
1975 37,816 +2.82%
1980 17,004 −14.77%
1990 24,689 +3.80%
1995 29,303 +3.26%
2000 32,844 +2.48%
2007 33,902 +0.44%
2010 38,229 +4.47%
2015 41,572 +1.61%
2020 40,585 −0.47%
Source: Philippine Statistics Authority

Economy