Lang‑ayan, Municipality of Santiago, Province of Ilocos Sur

Summary data
Typebarangay
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
MunicipalitySantiago
Postal code2707
Population (2015)373
Philippine major island(s)Luzon
Coordinates17.2739, 120.4389

Lang‑ayan is a barangay in the municipality of Santiago, in the province of Ilocos Sur. Its population as determined by the 2015 Census was 373. This represented 1.99% of the total population of Santiago.

Demographics

Population by age group

According to the 2015 Census, the age groups with the highest population in Lang-ayan are in the ranges 5 to 9, and 35 to 39, with 33 individuals. Conversely, the age group with the lowest population is 80 and over, with 4 individuals.

details
Age groupPopulation (2015)
Under 15
1 to 429
5 to 933
10 to 1426
15 to 1920
20 to 2430
25 to 2927
30 to 3431
35 to 3933
40 to 4432
45 to 4919
50 to 5421
55 to 5911
60 to 6416
65 to 6915
70 to 7410
75 to 7911
80 and over4
Total373

Historical population

The population of Lang-ayan grew from 360 in 1990 to 373 in 2015, an increase of 13 people. The latest census figures in 2015 denote a positive growth rate of 1.55%, or an increase of 29 people, from the previous population of 344 in 2010.

Census datePopulationGrowth rate
360
356-0.21%
3590.18%
321-1.53%
3442.55%
3731.55%

Location

Lang‑ayan is situated at approximately 17.2739, 120.4389, in the island of Luzon. Elevation at these coordinates is estimated at 17.2 meters or 56.4 feet above mean sea level.


Adjacent barangays

Lang‑ayan shares a common border with the following barangay(s):

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Notes

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