Iba, Province of Zambales
| Type | municipality |
|---|---|
| Island group | Luzon |
| Region | Central Luzon (Region III) |
| Province | Zambales |
| Barangay count | 14 |
| Postal code | 2201 |
| Coastal/Landlocked | coastal |
| Marine waterbodies | South China Sea |
| Philippine major island(s) | Luzon |
| Area (2013) | 153.38 km2 (59.22 sq mi) |
| Population (2020) | 55,581 |
| Density (2020) | 362 / km2 (939 / sq mi) |
| Coordinates | 15° 20' North, 119° 59' East (15.3264, 119.9786) |
| Estimated elevation above sea level | 12.7 meters (41.6 feet) |
Iba is a coastal municipality in the province of Zambales. It serves as the provincial capital.
The municipality has a land area of 153.38 square kilometers or 59.22 square miles which constitutes 4.22% of Zambales's total area. Its population as determined by the 2020 Census was 55,581. This represented 8.56% of the total population of Zambales province, or 0.45% of the overall population of the Central Luzon region. Based on these figures, the population density is computed at 362 inhabitants per square kilometer or 939 inhabitants per square mile.
Barangays
Iba has 14 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) |
|---|---|---|---|---|---|
| Amungan | 19.28% | 10,714 | 9,017 | 18.82% | 3.70% |
| Bangantalinga | 9.33% | 5,188 | 4,759 | 9.01% | 1.83% |
| Dirita-Baloguen | 6.77% | 3,763 | 3,162 | 19.01% | 3.73% |
| Lipay-Dingin-Panibuatan | 6.13% | 3,406 | 2,987 | 14.03% | 2.80% |
| Palanginan | 19.74% | 10,973 | 10,413 | 5.38% | 1.11% |
| San Agustin | 11.34% | 6,301 | 5,609 | 12.34% | 2.48% |
| Santa Barbara | 8.14% | 4,526 | 4,345 | 4.17% | 0.86% |
| Santo Rosario | 7.86% | 4,366 | 3,979 | 9.73% | 1.97% |
| Zone 1 Poblacion | 4.32% | 2,403 | 2,136 | 12.50% | 2.51% |
| Zone 2 Poblacion | 1.36% | 755 | 860 | -12.21% | -2.70% |
| Zone 3 Poblacion | 0.99% | 549 | 415 | 32.29% | 6.07% |
| Zone 4 Poblacion | 0.80% | 443 | 523 | -15.30% | -3.43% |
| Zone 5 Poblacion | 2.53% | 1,407 | 1,611 | -12.66% | -2.81% |
| Zone 6 Poblacion | 1.42% | 787 | 690 | 14.06% | 2.81% |
| Iba Total | 55,581 | 50,506 | 10.05% | 2.04% | |
Economy
The annual regular revenue of Iba for the fiscal year of 2016 was ₱150,175,708.02.
details
| Fiscal Year | Annual Regular Income | Change |
|---|---|---|
| 2009 | 76,331,810.73 | – |
| 2010 | 80,341,889.99 | 5.25% |
| 2011 | 88,547,707.55 | 10.21% |
| 2012 | 89,286,536.50 | 0.83% |
| 2013 | 101,234,941.65 | 13.38% |
| 2014 | 119,748,181.47 | 18.29% |
| 2015 | 132,820,361.48 | 10.92% |
| 2016 | 150,175,708.02 | 13.07% |
End notes:
| ||
Demographics
Households
The household population of Iba in the 2015 Census was 50,038 broken down into 11,909 households or an average of 4.20 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 29,112 | 5,621 | 5.18 | |
| 31,315 | 6,441 | 4.86 | |
| 34,553 | 7,260 | 4.76 | |
| 44,142 | 9,713 | 4.54 | |
| 46,507 | 10,722 | 4.34 | |
| 50,038 | 11,909 | 4.20 |
Population by age group
According to the 2015 Census, the age group with the highest population in Iba is 5 to 9, with 5,354 individuals. Conversely, the age group with the lowest population is 75 to 79, with 460 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 994 | 1.97% |
| 1 to 4 | 4,407 | 8.73% |
| 5 to 9 | 5,354 | 10.60% |
| 10 to 14 | 4,951 | 9.80% |
| 15 to 19 | 4,962 | 9.82% |
| 20 to 24 | 4,338 | 8.59% |
| 25 to 29 | 3,958 | 7.84% |
| 30 to 34 | 3,596 | 7.12% |
| 35 to 39 | 3,383 | 6.70% |
| 40 to 44 | 2,860 | 5.66% |
| 45 to 49 | 2,903 | 5.75% |
| 50 to 54 | 2,393 | 4.74% |
| 55 to 59 | 1,980 | 3.92% |
| 60 to 64 | 1,599 | 3.17% |
| 65 to 69 | 1,212 | 2.40% |
| 70 to 74 | 681 | 1.35% |
| 75 to 79 | 460 | 0.91% |
| 80 and over | 475 | 0.94% |
| Total | 50,506 | 100.00% |
| ||
Historical population
The population of Iba grew from 4,482 in 1903 to 55,581 in 2020, an increase of 51,099 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 2.04%, or an increase of 5,075 people, from the previous population of 50,506 in 2015.
details
| Census date | Population | Growth rate |
|---|---|---|
| 4,482 | – | |
| 5,452 | 1.24% | |
| 8,299 | 2.12% | |
| 9,741 | 1.66% | |
| 14,555 | 3.59% | |
| 19,521 | 2.91% | |
| 21,020 | 1.50% | |
| 22,791 | 1.63% | |
| 29,221 | 2.52% | |
| 31,503 | 1.42% | |
| 34,678 | 2.08% | |
| 44,344 | 3.45% | |
| 46,761 | 1.95% | |
| 50,506 | 1.48% | |
| 55,581 | 2.04% |
The total number of registered voters or electorate in Iba for the year 2019 was 32,928, broken down into 15,713 males and 17,215 females.
Location
The municipal center of Iba is situated at approximately 15° 20' North, 119° 59' East, in the island of Luzon. Elevation at these coordinates is estimated at 12.7 meters or 41.6 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 Iba are Olongapo, Mabalacat, Pampanga, Tarlac City, Tarlac, Angeles, San Carlos, Pangasinan, and San Fernando, Pampanga. The nearest municipalities are Botolan, Zambales, Palauig, Zambales, Cabangan, Zambales, Masinloc, Zambales, San Felipe, Zambales, and Candelaria, Zambales. Its distance from the national capital is 135.02 kilometers (83.90 miles). The following list delineates such distance measurements.
great-circle distance
Nearest towns
- Botolan, Zambales, 6.46 kilometers (4.01 miles) to the Southeast (S50°E)
- Palauig, Zambales, 13.93 kilometers (8.66 miles) to the North‑Northwest (N32°W)
- Cabangan, Zambales, 20.29 kilometers (12.61 miles) to the South‑Southeast (S24°E)
- Masinloc, Zambales, 23.59 kilometers (14.66 miles) to the North (N7°W)
- San Felipe, Zambales, 30.97 kilometers (19.25 miles) to the South‑Southeast (S18°E)
- Candelaria, Zambales, 33.59 kilometers (20.87 miles) to the North (N9°W)
Nearest cities
- Olongapo, 63.83 kilometers (39.66 miles) to the South‑Southeast (S31°E)
- Mabalacat, Pampanga, 65.03 kilometers (40.40 miles) to the East (S80°E)
- Tarlac City, Tarlac, 67.91 kilometers (42.20 miles) to the East‑Northeast (N75°E)
- Angeles, 68.63 kilometers (42.65 miles) to the East‑Southeast (S72°E)
- San Carlos, Pangasinan, 77.31 kilometers (48.04 miles) to the North‑Northeast (N31°E)
- San Fernando, Pampanga, 83.50 kilometers (51.88 miles) to the East‑Southeast (S67°E)
Distance from Manila: 135.02 kilometers (83.90 miles) to the Southeast (S53°E)
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.