Siayan, Zamboanga del Norte
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Siayan | |
|---|---|
| Municipality of Siayan | |
| Nickname: Pangase Town | |
Map of Zamboanga del Norte with Siayan highlighted | |
![]() Interactive map of Siayan | |
Location within the Philippines | |
| Coordinates: 8°15′06″N 123°06′52″E / 8.2517°N 123.1144°E | |
| Country | Philippines |
| Region | Zamboanga Peninsula |
| Province | Zamboanga del Norte |
| District | 2nd district |
| Named after | Siay and Ayan |
| Barangays | 22 (see Barangays) |
| Government | |
| • Type | Sangguniang Bayan |
| • Mayor | Alberto J. Bongcawel (Lakas) |
| • Vice Mayor | Crisologo A. Decierdo (Lakas) |
| • Representative | Irene G. Labadlabad (Lakas) |
| • Municipal Council | Members |
| • Electorate | 28,072 voters (2025) |
| Area | |
• Total | 494.75 km2 (191.02 sq mi) |
| Elevation | 193 m (633 ft) |
| Highest elevation | 682 m (2,238 ft) |
| Lowest elevation | 19 m (62 ft) |
| Population (2024 census)[3] | |
• Total | 40,937 |
| • Density | 82.743/km2 (214.30/sq mi) |
| • Households | 7,607 |
| Economy | |
| • Income class | 1st municipal income class |
| • Poverty incidence | 67.03 |
| • Revenue | ₱ 311.1 million (2022) |
| • Assets | ₱ 693.3 million (2022) |
| • Expenditure | ₱ 197.2 million (2022) |
| • Liabilities | ₱ 189.1 million (2022) |
| Service provider | |
| • Electricity | Zamboanga del Norte Electric Cooperative (ZANECO) |
| Time zone | UTC+8 (PST) |
| ZIP code | 7113 |
| PSGC | |
| IDD : area code | +63 (0)65 |
| Native languages | Subanon Cebuano Chavacano Tagalog |
| Website | siayan |
Siayan, officially the Municipality of Siayan (Cebuano: Lungsod sa Siayan; Subanen: Benwa Siayan; Chavacano: Municipalidad de Siayan; Tagalog: Bayan ng Siayan), is a municipality in the province of Zamboanga del Norte, Philippines. According to the 2024 census, it has a population of 40,937 people.[5]
On October 1, 1964, President Diosdado Macapagal signed Executive Order No. 114, creating the municipality of Siayan by separating part of Sindangan.[6][7] It was among those executive orders issued to create 33 municipalities, even their respective legislative bills did not pass Congress. However, vice-president Emmanuel Pelaez filed a special civil action for a writ of prohibition to void such issuances, which was unanimously granted by the Supreme Court in 1965 (Pelaez v. auditor general).[8]
On June 17, 1967, Republic Act No. 4989 was enacted without executive approval,[9][10] eventually recreating the municipality by separating 16 barrios, as originally proposed,[6] from its mother entity.[9]
In 1971, the seat of government was transferred from originally-designated Paranglumba to Siayan Proper.[11] Barrio Siayan was created in 1959.[12]
Geography
Barangays
Siayan is politically subdivided into 22 barangays. Each barangay consists of puroks while some have sitios.
- Balok
- Balunokan
- Datagan
- Denuyan
- Diongan
- Dumogok
- Dumpilas
- Gonayen
- Guibo
- Gunyan
- Litolet
- Macasing
- Mangilay
- Moyo
- Muñoz
- Pange
- Paranglumba
- Poblacion
- Polayo
- Sayaw
- Seriac
- Soguilon
Climate
| Climate data for Siayan, Zamboanga del Norte | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | 29 (84) |
29 (84) |
30 (86) |
31 (88) |
30 (86) |
29 (84) |
29 (84) |
29 (84) |
30 (86) |
29 (84) |
29 (84) |
29 (84) |
29 (85) |
| Mean daily minimum °C (°F) | 23 (73) |
23 (73) |
23 (73) |
23 (73) |
24 (75) |
24 (75) |
24 (75) |
24 (75) |
24 (75) |
24 (75) |
24 (75) |
23 (73) |
24 (74) |
| Average precipitation mm (inches) | 104 (4.1) |
76 (3.0) |
92 (3.6) |
97 (3.8) |
199 (7.8) |
238 (9.4) |
195 (7.7) |
193 (7.6) |
178 (7.0) |
212 (8.3) |
171 (6.7) |
110 (4.3) |
1,865 (73.3) |
| Average rainy days | 14.7 | 12.5 | 15.8 | 17.5 | 27.6 | 28.5 | 29.0 | 27.5 | 26.9 | 27.9 | 23.5 | 18.2 | 269.6 |
| Source: Meteoblue[13] | |||||||||||||
Demographics
Inhabitants in the municipality are Subanens, comprising about 70%,[14] and Visayan migrants.[10]
| Year | Pop. | ±% p.a. |
|---|---|---|
| 1970 | 9,193 | — |
| 1975 | 13,913 | +8.67% |
| 1980 | 18,420 | +5.77% |
| 1990 | 24,314 | +2.82% |
| 1995 | 27,950 | +2.65% |
| 2000 | 33,074 | +3.67% |
| 2007 | 34,588 | +0.62% |
| 2010 | 34,989 | +0.42% |
| 2015 | 34,966 | −0.01% |
| 2020 | 36,236 | +0.75% |
| 2024 | 40,937 | +2.97% |
| Source: Philippine Statistics Authority[15][16][17][18][19] | ||
