Ba‑i, Municipality of Lagayan, Province of Abra

Summary data
Typebarangay
Island groupLuzon
RegionCordillera Administrative Region (CAR)
ProvinceAbra
MunicipalityLagayan
Postal code2824
Population (2020)731
Philippine major island(s)Luzon
Coordinates17.7334, 120.7483 (17° 44' North, 120° 45' East)
Estimated elevation above sea level233.3 meters (765.4 feet)

Ba‑i is a barangay in the municipality of Lagayan, in the province of Abra. Its population as determined by the 2020 Census was 731. This represented 16.29% of the total population of Lagayan.

Demographics

Households

The household population of Ba-i in the 2015 Census was 839 broken down into 180 households or an average of 4.66 members per household.

details
Number of households in Ba-i (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
7961565.10
8031545.21
7791564.99
8091624.99
8511794.75
8391804.66

Population by age group

According to the 2015 Census, the age groups with the highest population in Ba-i are in the ranges 5 to 9, and 10 to 14, with 90 individuals. Conversely, the age group with the lowest population is 75 to 79, with 10 individuals.

details
Population of Ba-i by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1161.91%
1 to 4718.46%
5 to 99010.73%
10 to 149010.73%
15 to 19647.63%
20 to 24809.54%
25 to 29627.39%
30 to 34667.87%
35 to 39536.32%
40 to 44323.81%
45 to 49303.58%
50 to 54384.53%
55 to 59435.13%
60 to 64313.69%
65 to 69212.50%
70 to 74151.79%
75 to 79101.19%
80 and over273.22%
Total839100.00%
  • Youth Dependency Ratio: 53.51
  • Old Age Dependency Ratio: 14.63
  • Total Dependency Ratio: 68.14
  • Median Age: 25.69

Historical population

The population of Ba-i fell from 796 in 1990 to 731 in 2020, a decrease of 65 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 2.86%, or a decrease of 108 people, from the previous population of 839 in 2015.

Population of Ba-i (1990‑2020)
Census datePopulationGrowth rate
796
8030.16%
779-0.65%
8090.52%
8511.86%
839-0.27%
731-2.86%

Location

Ba‑i is situated at approximately 17.7334, 120.7483, in the island of Luzon. Elevation at these coordinates is estimated at 233.3 meters or 765.4 feet above mean sea level.


Adjacent barangays

Ba‑i 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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