Siruma, Province of Camarines Sur

Summary data
Typemunicipality
Island groupLuzon
RegionBicol Region (Region V)
ProvinceCamarines Sur
Barangay count22
Postal code4427
Coastal/Landlockedcoastal
Marine waterbodiesSan Miguel Bay [Philippine Sea]
Philippine major island(s)Luzon
Area (2013)141.27 km2 (54.54 sq mi)
Population (2020)19,419
Density (2020)137 / km2 (356 / sq mi)
Coordinates14° 1' North, 123° 16' East (14.0221, 123.2596)
Estimated elevation above sea level20.4 meters (66.8 feet)

Siruma is a coastal municipality in the province of Camarines Sur.

The municipality has a land area of 141.27 square kilometers or 54.54 square miles which constitutes 2.56% of Camarines Sur's total area. Its population as determined by the 2020 Census was 19,419. This represented 0.94% of the total population of Camarines Sur province, or 0.32% of the overall population of the Bicol Region. Based on these figures, the population density is computed at 137 inhabitants per square kilometer or 356 inhabitants per square mile.

Barangays

Siruma has 22 barangays as shown in the following table.

Demographic profile of barangays
Local government units of Siruma
BarangayPopulation percentage (2020)Population (2020)Population (2015)Change (2015‑2020)Annual Population Growth Rate (2015‑2020)
Bagong Sirang1.60%3113061.63%0.34%
Bahao3.71%72164511.78%2.37%
Boboan4.96%9639066.29%1.29%
Butawanan9.54%1,8521,48125.05%4.82%
Cabugao6.55%1,2711,2551.27%0.27%
Fundado5.40%1,0489559.74%1.98%
Homestead2.83%54941532.29%6.07%
La Purisima1.58%306360-15.00%-3.36%
Mabuhay2.70%52446013.91%2.78%
Malaconini1.46%284292-2.74%-0.58%
Matandang Siruma2.11%41031231.41%5.92%
Nalayahan3.29%63853120.15%3.94%
Pamintan-Bantilan5.14%9989356.74%1.38%
Pinitan6.91%1,3421,2398.31%1.70%
Poblacion10.12%1,9661,69416.06%3.18%
Salvacion5.57%1,0811,0750.56%0.12%
San Andres2.11%410497-17.51%-3.97%
San Ramon4.56%88670924.96%4.80%
Sulpa4.46%8668037.85%1.60%
Tandoc2.50%4854791.25%0.26%
Tongo-Bantigue1.74%33726825.75%4.94%
Vito11.18%2,1712,1471.12%0.23%
Siruma Total19,41917,7649.32%1.89%

Economy

The annual regular revenue of Siruma for the fiscal year of 2016 was 65,699,689.03.

details
Annual regular income of Siruma (2009‑2016)
Fiscal YearAnnual Regular IncomeChange
200937,996,358.80
201040,379,790.506.27%
201143,803,123.308.48%
2012
2013
201452,302,184.77
201559,765,179.3314.27%
201665,699,689.039.93%

End notes:

  • Annual Regular Income = Locally Sourced Revenue + Internal Revenue Allotment (IRA) Current Year + Other Shares from National Tax Collection
  • Locally Sourced Revenue = Real Property Tax (General Fund) + Tax on Business + Other Taxes + Regulatory Fees + Service/User Charges + Receipts from Economic Enterprises

Demographics

Households

The household population of Siruma in the 2015 Census was 17,764 broken down into 3,780 households or an average of 4.70 members per household.

details
Number of households in Siruma (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
13,1022,3325.62
13,8452,5405.45
16,3222,9505.53
17,0203,3705.05
17,0413,3855.03
17,7643,7804.70

Population by age group

According to the 2015 Census, the age group with the highest population in Siruma is 5 to 9, with 2,522 individuals. Conversely, the age group with the lowest population is 80 and over, with 109 individuals.

details
Population of Siruma by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 14032.27%
1 to 41,88810.63%
5 to 92,52214.20%
10 to 142,49414.04%
15 to 191,90310.71%
20 to 241,2467.01%
25 to 291,1026.20%
30 to 341,0005.63%
35 to 399475.33%
40 to 448624.85%
45 to 498564.82%
50 to 547414.17%
55 to 595803.27%
60 to 644452.51%
65 to 693271.84%
70 to 741971.11%
75 to 791420.80%
80 and over1090.61%
Total17,764100.00%
  • Youth Dependency Ratio: 75.47
  • Old Age Dependency Ratio: 8
  • Total Dependency Ratio: 83.47
  • Median Age: 19.14

Historical population

The population of Siruma grew from 1,321 in 1903 to 19,419 in 2020, an increase of 18,098 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 1.89%, or an increase of 1,655 people, from the previous population of 17,764 in 2015.

details
Population of Siruma (1903‑2020)
Census datePopulationGrowth rate
1,321
1,194-0.64%
5,8518.27%
5,245-1.12%
9,3075.17%
9,3730.07%
10,4352.18%
11,6132.16%
13,1031.21%
13,8701.07%
16,3393.58%
17,0350.58%
17,0500.03%
17,7640.78%
19,4191.89%

The total number of registered voters or electorate in Siruma for the year 2019 was 13,155, broken down into 6,873 males and 6,282 females.

Location

The municipal center of Siruma is situated at approximately 14° 1' North, 123° 16' East, in the island of Luzon. Elevation at these coordinates is estimated at 20.4 meters or 66.8 feet above mean sea level.

Distances

Based on the great-circle distance (the shortest distance between two points over the surface of the Earth), the cities closest to Siruma are Naga, Camarines Sur, Iriga, Camarines Sur, Tabaco, Albay, Ligao, Albay, Legazpi, Albay, and Sorsogon City, Sorsogon. The nearest municipalities are Tinambac, Camarines Sur, Mercedes, Camarines Norte, Basud, Camarines Norte, Calabanga, Camarines Sur, Daet, Camarines Norte, and Cabusao, Camarines Sur. Its distance from the national capital is 253.87 kilometers (157.75 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 253.87 kilometers (157.75 miles) to the West‑Northwest (N75°W)

Notes

  1. Unless otherwise specified, population count (excluding percentages), household data, and land area figures are derived from the Philippine Statistics Authority.
  2. Data on registered voters is from the Commission on Elections.
  3. Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
  4. Postal code information is from the Philippine Postal Corporation.
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