Sigma, Capiz

Sigma, officially the Municipality of Sigma (Capiznon/Hiligaynon: Banwa sang Sigma; Tagalog: Bayan ng Sigma), is a municipality in the province of Capiz, Philippines. According to the 2020 census, it has a population of 31,688 people.^[5]

Sigma
Municipality
Municipality of Sigma
Flag
Nickname:  The Heart of Capiz
Map of Capiz with Sigma highlighted
OpenStreetMap
Sigma Location within the Philippines
Coordinates: 11°25′17″N 122°39′58″E
Country	Philippines
Region	Western Visayas
Province	Capiz
District	2nd district
Barangays	21 (see Barangays)
Government  [1]
• Type	Sangguniang Bayan
• Mayor	Dante Rizal A. Eslabon (1Capiz)
• Vice Mayor	Stephen F. Alayon (PDP)
• Representative	Jane T. Castro (Lakas)
• Municipal Council	Members Norman T. Marcelino Christopher L. Alayon Albert B. Santiago Thomas B. Lagulay Esperidion C. Pelaez Dan Justin T. Eslabon Rolly D. Miguel Fernando B. Capapas
• Electorate	23,201 voters (2025)
Area [2]
• Total	101.71 km2 (39.27 sq mi)
Elevation	41 m (135 ft)
Highest elevation	401 m (1,316 ft)
Lowest elevation	0 m (0 ft)
Population  (2024 census)[3]
• Total	32,628
• Density	320/km2 (830/sq mi)
• Households	8,208
Economy
• Income class	3rd municipal income class
• Poverty incidence	14.66 % (2021)[4]
• Revenue	₱ 179.8 million (2022)
• Assets	₱ 296.4 million (2022)
• Expenditure	₱ 71.19 million (2022)
• Liabilities	₱ 39.85 million (2022)
Service provider
• Electricity	Capiz Electric Cooperative (CAPELCO)
Time zone	UTC+8 (PST)
ZIP code	5816
PSGC	061916000
IDD : area code	+63 (0)36
Native languages	Capisnon Hiligaynon Tagalog

Sigma is 28 kilometres (17 mi) from Roxas City, the provincial capital.

It was named after the legendary Datu Sikma, which was transcribed as Sigma by the Spanish colonizers.

Geography

Barangays

Sigma is politically subdivided into 21 barangays. ^[6] Each barangay consists of puroks and some have sitios.

• Acbo
• Amaga
• Balucuan
• Bangonbangon
• Capuyhan
• Cogon
• Dayhagon
• Guintas
• Malapad Cogon
• Mangoso
• Mansacul
• Matangcong
• Matinabus
• Mianay
• Oyong
• Pagbunitan
• Parian
• Pinamalatican
• Poblacion Norte
• Poblacion Sur
• Tawog

Climate

Climate data for Sigma, Capiz
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean daily maximum °C (°F)	27 (81)	28 (82)	29 (84)	31 (88)	32 (90)	31 (88)	30 (86)	30 (86)	29 (84)	29 (84)	29 (84)	27 (81)	29 (85)
Mean daily minimum °C (°F)	23 (73)	23 (73)	23 (73)	24 (75)	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)	39 (1.5)	46 (1.8)	48 (1.9)	90 (3.5)	144 (5.7)	152 (6.0)	145 (5.7)	163 (6.4)	160 (6.3)	120 (4.7)	90 (3.5)	1,258 (49.4)
Average rainy days	12.3	9.0	9.9	10.0	18.5	25.0	27.4	26.0	25.9	24.9	17.9	14.2	221
Source: Meteoblue[7]

Demographics

Population census of Sigma

Year	Pop.	±% p.a.
1903	5,205	—
1918	8,303	+3.16%
1939	10,628	+1.18%
1948	10,898	+0.28%
1960	12,649	+1.25%
1970	15,911	+2.32%
1975	18,536	+3.11%
1980	20,043	+1.58%
1990	25,089	+2.27%
1995	25,801	+0.53%
2000	27,366	+1.27%
2007	28,709	+0.66%
2010	29,138	+0.54%
2015	30,134	+0.64%
2020	31,688	+1.06%
2024	32,628	+0.70%
Source: Philippine Statistics Authority[8][9][10][11][12]

In the 2020 census, the population of Sigma, Capiz, was 31,688 people,^[13] with a density of 310 inhabitants per square kilometre or 800 inhabitants per square mile.

Economy

Poverty incidence of Sigma

10 20 30 40 50 2000 47.34 2003 33.27 2006 36.50 2009 17.47 2012 28.18 2015 18.28 2018 6.38 2021 14.66 Source: Philippine Statistics Authority[14][15][16][17][18][19][20][21]