Biga, Municipality of Magallanes, Province of Sorsogon

Summary data
Typebarangay
Island groupLuzon
RegionBicol Region (Region V)
ProvinceSorsogon
MunicipalityMagallanes
Postal code4705
Population (2020)1,304
Coordinates12.8338, 123.8074 (12° 50' North, 123° 48' East)
Estimated elevation above sea level18.3 meters (60.0 feet)

Biga is a barangay in the municipality of Magallanes, in the province of Sorsogon. Its population as determined by the 2020 Census was 1,304. This represented 3.49% of the total population of Magallanes.

Demographics

Households

The household population of Biga in the 2015 Census was 1,194 broken down into 224 households or an average of 5.33 members per household.

details
Number of households in Biga (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
7461275.87
8961555.78
9581715.60
1,1521975.85
1,1472145.36
1,1942245.33

Population by age group

According to the 2015 Census, the age group with the highest population in Biga is 10 to 14, with 191 individuals. Conversely, the age group with the lowest population is 75 to 79, with 3 individuals.

details
Population of Biga by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1342.85%
1 to 41199.97%
5 to 915813.23%
10 to 1419116.00%
15 to 1913911.64%
20 to 24836.95%
25 to 29736.11%
30 to 34655.44%
35 to 39685.70%
40 to 44594.94%
45 to 49554.61%
50 to 54534.44%
55 to 59423.52%
60 to 64211.76%
65 to 69131.09%
70 to 74110.92%
75 to 7930.25%
80 and over70.59%
Total1,194100.00%
  • Youth Dependency Ratio: 76.29
  • Old Age Dependency Ratio: 5.17
  • Total Dependency Ratio: 81.46
  • Median Age: 18.42

Historical population

The population of Biga grew from 746 in 1990 to 1,304 in 2020, an increase of 558 people over the course of 30 years. The latest census figures in 2020 denote a positive growth rate of 1.87%, or an increase of 110 people, from the previous population of 1,194 in 2015.

Population of Biga (1990‑2020)
Census datePopulationGrowth rate
746
8963.49%
9581.44%
1,1522.58%
1,147-0.16%
1,1940.77%
1,3041.87%

Location

Biga is situated at approximately 12.8338, 123.8074, in the island of Bagatao. Elevation at these coordinates is estimated at 18.3 meters or 60.0 feet above mean sea level.


Adjacent barangays

Biga shares a common border with the following barangay(s):

Notes

  1. Data on population, and households, are from the Philippine Statistics Authority.
  2. Postal code information is from the Philippine Postal Corporation.
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