Diadi, Province of Nueva Vizcaya

Summary data
Typemunicipality
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceNueva Vizcaya
Barangay count19
Postal code3712
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Philippine major island(s)Luzon
Area (2007)181.20 km2 (69.96 sq mi)
Population (2015)18,122
Density (2015)100 / km2 (259 / sq mi)
Coordinates16° 40' North, 121° 22' East (16.6599, 121.3686)
Estimated elevation above sea level227.5 meters (746.2 feet)

Diadi is a municipality in the landlocked province of Nueva Vizcaya.

The municipality has a land area of 181.20 square kilometers or 69.96 square miles which constitutes 4.56% of Nueva Vizcaya's total area. Its population as determined by the 2015 Census was 18,122. This represented 4.01% of the total population of Nueva Vizcaya province, or 0.53% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 100 inhabitants per square kilometer or 259 inhabitants per square mile.

Barangays

Diadi has 19 barangays as shown in the following table.

Demographic profile of barangays
BarangayPopulation percentage (2015)Population (2015)Population (2010)Change (2010‑2015)Annual Population Growth Rate (2010‑2015)
Ampakling4.19%75960026.50%4.58%
Arwas4.49%8147597.25%1.34%
Balete7.25%1,3141,17012.31%2.23%
Bugnay7.36%1,3341,20710.52%1.92%
Butao5.94%1,0769928.47%1.56%
Decabacan3.88%7036744.30%0.81%
Duruarog5.10%9248686.45%1.20%
Escoting5.42%9839671.65%0.31%
Langca1.43%2592532.37%0.45%
Lurad2.90%5264829.13%1.68%
Nagsabaran7.04%1,2761,12713.22%2.39%
Namamparan7.29%1,3211,11818.16%3.23%
Pinya3.67%6656167.95%1.47%
Poblacion18.32%3,3202,95612.31%2.24%
Rosario1.73%31326617.67%3.15%
San Luis3.20%5805397.61%1.41%
San Pablo4.57%8297569.66%1.77%
Villa Aurora2.52%45739914.54%2.62%
Villa Florentino3.69%669735-8.98%-1.78%
Diadi Total18,12216,4849.94%1.82%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of Diadi for the fiscal year of 2016 was 73,269,835.66.

details
Fiscal YearAnnual Regular IncomeChange
2009
201043,311,149.81
201147,068,292.098.67%
2012
201351,148,188.80
201457,710,913.4712.83%
201567,415,183.6816.82%
201673,269,835.668.68%

End notes:

  • Annual Regular Income = Locally Sourced Revenue + Internal Revenue Allotment (IRA) Current Year + Other Shares from National Tax Collection
  • Locally Sourced Revenue = Real Property Tax (General Fund) + Tax on Business + Other Taxes + Regulatory Fees + Service/User Charges + Receipts from Economic Enterprises

Demographics

Population by age group

According to the 2015 Census, the age group with the highest population in Diadi is 5 to 9, with 2,083 individuals. Conversely, the age group with the lowest population is 75 to 79, with 134 individuals.

details
Age groupPopulation (2015)
Under 1409
1 to 41,679
5 to 92,083
10 to 141,862
15 to 191,669
20 to 241,669
25 to 291,429
30 to 341,328
35 to 391,229
40 to 441,039
45 to 49926
50 to 54803
55 to 59670
60 to 64501
65 to 69336
70 to 74207
75 to 79134
80 and over149
Total18,122

Historical population

The population of Diadi grew from 4,407 in 1970 to 18,122 in 2015, an increase of 13,715 people. The latest census figures in 2015 denote a positive growth rate of 1.82%, or an increase of 1,638 people, from the previous population of 16,484 in 2010.

details
Census datePopulationGrowth rate
4,407
6,6498.60%
8,6055.29%
11,3512.81%
12,4691.78%
14,3743.10%
15,5671.11%
16,4842.11%
18,1221.82%

Location

The municipal center of Diadi is situated at approximately 16° 40' North, 121° 22' East, in the island of Luzon. Elevation at these coordinates is estimated at 227.5 meters or 746.2 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 Diadi are Santiago, Cauayan, Ilagan, Tabuk, Baguio, and San Jose. The nearest municipalities are Cordon, Bagabag, Lamut, Diffun, Villaverde, and Quezon. Its distance from the national capital is 232.74 kilometers (144.62 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

  • Santiago, Isabela, 19.02 kilometers (11.82 miles) to the East (N81°E)
  • Cauayan, Isabela, 52.17 kilometers (32.42 miles) to the Northeast (N54°E)
  • Ilagan, Isabela, 77.11 kilometers (47.91 miles) to the Northeast (N46°E)
  • Tabuk, Kalinga, 83.80 kilometers (52.07 miles) to the North (N5°E)
  • Baguio, 87.19 kilometers (54.18 miles) to the West‑Southwest (S72°W)
  • San Jose, Nueva Ecija, 104.44 kilometers (64.89 miles) to the South‑Southwest (S23°W)

Distance from Manila: 232.74 kilometers (144.62 miles) to the South (S10°W)

National rankings

  • Population (2015): 18,122, ranked 1,264 out of 1,634
  • Land area (2007): 69.96 square kilometers, ranked 587 out of 1,634
  • Population density (2015): 100 inhabitants per square kilometer, ranked 1,285 out of 1,634
  • Annual population growth rate (2010 to 2015): 1.82%, ranked 499 out of 1,634

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
  3. Postal code information is from the Philippine Postal Corporation.
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