Mambulac, City of Silay, Province of Negros Occidental

Summary data
Typebarangay
Island groupVisayas
RegionWestern Visayas (Region VI)
ProvinceNegros Occidental
CitySilay
Postal code6116
Population (2020)18,581
Philippine major island(s)Negros
Coordinates10.7974, 122.9684 (10° 48' North, 122° 58' East)
Estimated elevation above sea level6.1 meters (20.0 feet)

Mambulac is a barangay in the city of Silay, in the province of Negros Occidental. Its population as determined by the 2020 Census was 18,581. This represented 14.24% of the total population of Silay.

Demographics

Households

The household population of Mambulac in the 2015 Census was 19,066 broken down into 4,346 households or an average of 4.39 members per household.

details
Number of households in Mambulac (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
11,6962,1295.49
16,8762,8955.83
15,7823,1545.00
18,4053,7204.95
18,1154,0134.51
19,0664,3464.39

Population by age group

According to the 2015 Census, the age group with the highest population in Mambulac is 5 to 9, with 1,961 individuals. Conversely, the age group with the lowest population is 80 and over, with 208 individuals.

details
Population of Mambulac by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 13381.77%
1 to 41,5388.06%
5 to 91,96110.27%
10 to 141,8809.85%
15 to 191,7739.29%
20 to 241,7058.93%
25 to 291,4467.58%
30 to 341,3527.08%
35 to 391,2106.34%
40 to 441,1936.25%
45 to 491,1075.80%
50 to 549605.03%
55 to 598344.37%
60 to 645953.12%
65 to 694582.40%
70 to 743161.66%
75 to 792141.12%
80 and over2081.09%
Total19,088100.00%
  • Youth Dependency Ratio: 46.96
  • Old Age Dependency Ratio: 9.82
  • Total Dependency Ratio: 56.78
  • Median Age: 26.21

Historical population

The population of Mambulac grew from 11,702 in 1990 to 18,581 in 2020, an increase of 6,879 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 0.57%, or a decrease of 507 people, from the previous population of 19,088 in 2015.

Population of Mambulac (1990‑2020)
Census datePopulationGrowth rate
11,702
16,8867.11%
15,782-1.44%
18,4052.14%
18,119-0.57%
19,0881.00%
18,581-0.57%

Location

Mambulac is situated at approximately 10.7974, 122.9684, in the island of Negros. Elevation at these coordinates is estimated at 6.1 meters or 20.0 feet above mean sea level.


Adjacent barangays

Mambulac 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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