San Guillermo, Municipality of San Nicolas, Province of Ilocos Norte
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | Ilocos Norte |
| Municipality | San Nicolas |
| Postal code | 2901 |
| Population (2020) | 1,678 |
| Philippine major island(s) | Luzon |
| Coordinates | 18.1529, 120.5985 (18° 9' North, 120° 36' East) |
| Estimated elevation above sea level | 19.4 meters (63.6 feet) |
San Guillermo is a barangay in the municipality of San Nicolas, in the province of Ilocos Norte. Its population as determined by the 2020 Census was 1,678. This represented 4.31% of the total population of San Nicolas.
Demographics
Households
The household population of San Guillermo in the 2015 Census was 1,746 broken down into 422 households or an average of 4.14 members per household.
Trends in household population and size
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 1,117 | 227 | 4.92 | |
| 1,215 | 247 | 4.92 | |
| 1,321 | 271 | 4.87 | |
| 1,503 | 331 | 4.54 | |
| 1,536 | 348 | 4.41 | |
| 1,746 | 422 | 4.14 |
Population by age group
According to the 2015 Census, the age group with the highest population in San Guillermo is 5 to 9, with 183 individuals. Conversely, the age group with the lowest population is 75 to 79, with 19 individuals.
Age distribution
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 35 | 1.97% |
| 1 to 4 | 126 | 7.09% |
| 5 to 9 | 183 | 10.30% |
| 10 to 14 | 175 | 9.85% |
| 15 to 19 | 136 | 7.65% |
| 20 to 24 | 161 | 9.06% |
| 25 to 29 | 163 | 9.17% |
| 30 to 34 | 165 | 9.29% |
| 35 to 39 | 143 | 8.05% |
| 40 to 44 | 89 | 5.01% |
| 45 to 49 | 102 | 5.74% |
| 50 to 54 | 73 | 4.11% |
| 55 to 59 | 58 | 3.26% |
| 60 to 64 | 53 | 2.98% |
| 65 to 69 | 37 | 2.08% |
| 70 to 74 | 25 | 1.41% |
| 75 to 79 | 19 | 1.07% |
| 80 and over | 34 | 1.91% |
| Total | 1,777 | 100.00% |
| ||
Historical population
The population of San Guillermo grew from 1,123 in 1990 to 1,678 in 2020, an increase of 555 people over the course of 30 years. The latest census figures in 2020 denote a negative annualized growth rate of 1.20%, or a decrease of 99 people, from the previous population of 1,777 in 2015.
Trends in population growth
| Census date | Population | Annualized Growth Rate |
|---|---|---|
| 1,123 | – | |
| 1,215 | 1.49% | |
| 1,321 | 1.81% | |
| 1,520 | 1.95% | |
| 1,536 | 0.38% | |
| 1,777 | 2.81% | |
| 1,678 | -1.20% |
Location
San Guillermo is situated at approximately 18.1529, 120.5985, in the island of Luzon. Elevation at these coordinates is estimated at 19.4 meters or 63.6 feet above mean sea level.
Adjacent barangays
San Guillermo shares a common border with the following barangay(s):
- Santa Cecilia (Barabar), San Nicolas, Ilocos Norte
- Santa Rosa, Sarrat, Ilocos Norte
- San Lorenzo, Sarrat, Ilocos Norte
- San Nicolas, Sarrat, Ilocos Norte
- San Agustin, San Nicolas, Ilocos Norte
- Santa Monica (Nagrebcan), San Nicolas, Ilocos Norte
- San Lucas (Poblacion), San Nicolas, Ilocos Norte
- San Paulo (Poblacion), San Nicolas, Ilocos Norte
- San Fernando (Poblacion), San Nicolas, Ilocos Norte
- San Cayetano (Poblacion), San Nicolas, Ilocos Norte
- San Eugenio (Poblacion), San Nicolas, Ilocos Norte
- San Lorenzo, San Nicolas, Ilocos Norte
- San Marcos (Payas), San Nicolas, Ilocos Norte
Notes
- Data on population, and households, are from the Philippine Statistics Authority.
- Postal code information is from the Philippine Postal Corporation.