Santo Tomas, Province of Isabela
| Type | municipality |
|---|---|
| Island group | Luzon |
| Region | Cagayan Valley (Region II) |
| Province | Isabela |
| Barangay count | 27 |
| Postal code | 3327 |
| Coastal/Landlocked | landlocked |
| Marine waterbodies | none (landlocked) |
| Philippine major island(s) | Luzon |
| Area (2013) | 80.58 km2 (31.11 sq mi) |
| Population (2020) | 24,528 |
| Density (2020) | 304 / km2 (788 / sq mi) |
| Coordinates | 17° 24' North, 121° 46' East (17.3998, 121.7658) |
| Estimated elevation above sea level | 34.9 meters (114.5 feet) |
Santo Tomas is a landlocked municipality in the coastal province of Isabela.
The municipality has a land area of 80.58 square kilometers or 31.11 square miles which constitutes 0.62% of Isabela's total area. Its population as determined by the 2020 Census was 24,528. This represented 1.45% of the total population of Isabela province, or 0.67% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 304 inhabitants per square kilometer or 788 inhabitants per square mile.
Barangays
Santo Tomas has 27 barangays as shown in the following table.
Demographic profile of barangays
| Barangay | Population percentage (2020) | Population (2020) | Population (2015) | Change (2015‑2020) | Annual Population Growth Rate (2015‑2020) |
|---|---|---|---|---|---|
| Ammugauan | 3.42% | 839 | 571 | 46.94% | 8.44% |
| Antagan | 2.04% | 500 | 491 | 1.83% | 0.38% |
| Bagabag | 3.65% | 895 | 798 | 12.16% | 2.44% |
| Bagutari | 5.17% | 1,268 | 1,235 | 2.67% | 0.56% |
| Balelleng | 8.09% | 1,985 | 1,791 | 10.83% | 2.19% |
| Barumbong | 4.47% | 1,096 | 1,198 | -8.51% | -1.86% |
| Biga Occidental | 2.95% | 724 | 744 | -2.69% | -0.57% |
| Biga Oriental | 2.92% | 717 | 665 | 7.82% | 1.60% |
| Bolinao-Culalabo | 7.55% | 1,851 | 1,612 | 14.83% | 2.95% |
| Bubug | 4.97% | 1,220 | 1,185 | 2.95% | 0.61% |
| Calanigan Norte | 1.96% | 480 | 445 | 7.87% | 1.61% |
| Calanigan Sur | 2.41% | 590 | 527 | 11.95% | 2.41% |
| Calinaoan Centro | 2.87% | 703 | 703 | 0.00% | 0.00% |
| Calinaoan Malasin | 1.95% | 478 | 442 | 8.14% | 1.66% |
| Calinaoan Norte | 2.50% | 613 | 587 | 4.43% | 0.92% |
| Cañogan Abajo Norte | 2.96% | 726 | 588 | 23.47% | 4.54% |
| Cañogan Abajo Sur | 2.72% | 666 | 773 | -13.84% | -3.09% |
| Cañogan Alto | 3.75% | 919 | 742 | 23.85% | 4.61% |
| Centro | 11.37% | 2,788 | 2,728 | 2.20% | 0.46% |
| Colunguan | 4.73% | 1,161 | 1,184 | -1.94% | -0.41% |
| Malapagay | 1.03% | 253 | 347 | -27.09% | -6.43% |
| San Rafael Abajo | 2.72% | 667 | 590 | 13.05% | 2.62% |
| San Rafael Alto | 2.75% | 675 | 630 | 7.14% | 1.46% |
| San Roque | 4.88% | 1,198 | 1,026 | 16.76% | 3.32% |
| San Vicente | 5.72% | 1,403 | 1,238 | 13.33% | 2.67% |
| Uauang-Galicia | 0.00% | 0 | 0 | NULL | NULL |
| Uauang-Tuliao | 0.46% | 113 | 165 | -31.52% | -7.66% |
| Santo Tomas Total | 24,528 | 23,005 | 6.62% | 1.36% | |
Economy
The annual regular revenue of Santo Tomas for the fiscal year of 2016 was ₱73,487,133.85.
Demographics
Households
The household population of Santo Tomas in the 2015 Census was 22,981 broken down into 4,980 households or an average of 4.61 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 18,063 | 3,290 | 5.49 | |
| 20,089 | 3,624 | 5.54 | |
| 21,380 | 3,864 | 5.53 | |
| 22,172 | 4,440 | 4.99 | |
| 21,688 | 4,583 | 4.73 | |
| 22,981 | 4,980 | 4.61 |
Population by age group
According to the 2015 Census, the age group with the highest population in Santo Tomas is 15 to 19, with 2,404 individuals. Conversely, the age group with the lowest population is 80 and over, with 224 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 456 | 1.98% |
| 1 to 4 | 1,827 | 7.94% |
| 5 to 9 | 2,371 | 10.31% |
| 10 to 14 | 2,380 | 10.35% |
| 15 to 19 | 2,404 | 10.45% |
| 20 to 24 | 2,101 | 9.13% |
| 25 to 29 | 1,697 | 7.38% |
| 30 to 34 | 1,463 | 6.36% |
| 35 to 39 | 1,453 | 6.32% |
| 40 to 44 | 1,282 | 5.57% |
| 45 to 49 | 1,243 | 5.40% |
| 50 to 54 | 1,195 | 5.19% |
| 55 to 59 | 973 | 4.23% |
| 60 to 64 | 795 | 3.46% |
| 65 to 69 | 545 | 2.37% |
| 70 to 74 | 364 | 1.58% |
| 75 to 79 | 232 | 1.01% |
| 80 and over | 224 | 0.97% |
| Total | 23,005 | 100.00% |
| ||
Historical population
The population of Santo Tomas grew from 3,678 in 1903 to 24,528 in 2020, an increase of 20,850 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 1.36%, or an increase of 1,523 people, from the previous population of 23,005 in 2015.
details
| Census date | Population | Growth rate |
|---|---|---|
| 3,678 | – | |
| – | -100.00% | |
| – | – | |
| – | – | |
| 11,460 | – | |
| 13,575 | 1.67% | |
| 14,239 | 0.96% | |
| 15,915 | 2.25% | |
| 18,063 | 1.27% | |
| 20,089 | 2.01% | |
| 21,380 | 1.34% | |
| 22,172 | 0.50% | |
| 21,688 | -0.80% | |
| 23,005 | 1.13% | |
| 24,528 | 1.36% |
The total number of registered voters or electorate in Santo Tomas for the year 2019 was 16,274, broken down into 8,079 males and 8,195 females.
Location
The municipal center of Santo Tomas is situated at approximately 17° 24' North, 121° 46' East, in the island of Luzon. Elevation at these coordinates is estimated at 34.9 meters or 114.5 feet above mean sea level.
Distances
Based on the great-circle distance (the shortest distance between two points over the surface of the Earth), the cities closest to Santo Tomas are Tuguegarao, Cagayan, Ilagan, Isabela, Tabuk, Kalinga, Cauayan, Isabela, Santiago, Isabela, and Candon, Ilocos Sur. The nearest municipalities are Cabagan, Isabela, San Pablo, Isabela, Santa Maria, Isabela, Delfin Albano, Isabela, Tumauini, Isabela, and Enrile, Cagayan. Its distance from the national capital is 322.04 kilometers (200.11 miles). The following list delineates such distance measurements.
great-circle distance
Nearest towns
- Cabagan, Isabela, 2.93 kilometers (1.82 miles) to the North (N2°W)
- San Pablo, Isabela, 6.21 kilometers (3.86 miles) to the North‑Northeast (N30°E)
- Santa Maria, Isabela, 8.04 kilometers (5.00 miles) to the North (N10°W)
- Delfin Albano, Isabela, 10.65 kilometers (6.62 miles) to the South (S7°E)
- Tumauini, Isabela, 14.70 kilometers (9.13 miles) to the South‑Southeast (S18°E)
- Enrile, Cagayan, 19.58 kilometers (12.17 miles) to the North‑Northwest (N24°W)
Nearest cities
- Tuguegarao, Cagayan, 23.80 kilometers (14.79 miles) to the North (N8°W)
- Ilagan, Isabela, 31.17 kilometers (19.37 miles) to the South‑Southeast (S25°E)
- Tabuk, Kalinga, 32.78 kilometers (20.37 miles) to the West‑Northwest (N76°W)
- Cauayan, Isabela, 51.52 kilometers (32.01 miles) to the South (S0°E)
- Santiago, Isabela, 82.27 kilometers (51.12 miles) to the South‑Southwest (S17°W)
- Candon, Ilocos Sur, 142.09 kilometers (88.29 miles) to the West (S81°W)
Distance from Manila: 322.04 kilometers (200.11 miles) to the South‑Southwest (S15°W)
Notes
- Unless otherwise specified, population count (excluding percentages), household data, and land area figures are derived from the Philippine Statistics Authority.
- Data on registered voters is from the Commission on Elections.
- Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
- Postal code information is from the Philippine Postal Corporation.