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Municipality

Naguilian

Naguilian, Isabela, Region II (Cagayan Valley). 1st income class. Population 34,520 (2024 POPCEN).

Data-quality note: 9 DPWH projects linked to Naguilian have no coordinates published by DPWH, so they are not on the map and cannot be checked with satellite images.

PSGC 0203120000 · Source: PSA, PSGC 3Q 2026 Publication Datafile

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Public records linked to Naguilian

Counts include this municipality and every LGU under it. Each record carries how it was linked and a confidence level; figures are as recorded by the source and exclude single amounts of ₱10B+ held for verification. They are not findings.

DPWH infrastructure projects

Contracts on the DPWH Transparency portal, placed by coordinates first. Source: DPWH Transparency portal

183 records · ₱5,057,231,235.13

17 placed at Naguilian level itself; the rest in LGUs under it.

  1. Organizational Outcome 1: Ensure Safe and Reliable National Road System: Bridge Program: Widening of Permanent Bridges: Naguilian Bridge Along Daang Maharlika (Lz)(Parallel Bridge)₱969,144,873.53 · 2020 · medium confidence (project coordinates inside the barangay boundary)
  2. Construction of Cagayan River Flood Control Project, Bgy. District 1 (Package 1), Reina Mercedes, Isabela₱98,997,072.72 · 2023 · medium confidence (project coordinates inside the barangay boundary)
  3. Convergence and Special Support Program-Basic Infrastructure Program - Flood Mitigation Structure Protecting Public Infrastructure/Facilities-Construction of Cagayan River Flood Control Project, Brgy. Roxas (Sta. 0+000 - Sta. 0+510) Naguilian, Isabela₱98,969,972.88 · 2023 · medium confidence (project coordinates inside the barangay boundary)
  4. Oo2: Protect Lives and Properties Against Major Floods-Flood Management Program- Construction/Rehab of Flood Mitigation Facilities W/N Major River Basins & Principal Rivers-Rehabilitation (Continuation) of Cagayan River Flood Control Project, Brgy Furao,₱96,489,917.42 · 2025 · medium confidence (project coordinates inside the barangay boundary)
  5. Cssp - Sustainable Infrastructure Projects Alleviating Gaps (Sipag) - Flood Mitigation Structures Protecting Major/ Strategic Public Buildings/ Facilities - Rehabilitation of Minanga Flood Control Project, Sta. 0+000 - Sta. 0+270.20, Naguilian, Isabela₱96,489,678.99 · 2024 · high confidence (project coordinates inside the city/municipality boundary)
  6. Oo2:Protect Lives and Properties Against Major Floods-Flood Management Program- Construction/ Rehabilitation of Flood Mitigation Facilities Within Major River Basins and Principal Rivers-Construction of Cagayan River Flood Control, Brgy. San Manuel, Nagui₱96,489,585.86 · 2024 · medium confidence (project coordinates inside the barangay boundary)

How linked: 166 by project coordinates inside the barangay boundary; 9 by project title names the place; 8 by project coordinates inside the city/municipality boundary.

Contracts this LGU awarded (PhilGEPS)

PhilGEPS awards where the procuring entity is this LGU. Source: PhilGEPS award notices

1 record · ₱663,781,635.62

  1. Municipality of Naguilian, Isabela₱663,781,635.62 · high confidence (the LGU itself is the buyer)

How linked: 1 by the LGU itself is the buyer.

PhilGEPS awards delivered here (all agencies)

Awards by any agency whose area of delivery is this province. PhilGEPS records delivery areas at province level only. Source: PhilGEPS award notices

Not yet linked to Naguilian itself. This shows the province figure for Isabela.

56,720 records · ₱206,082,170,662.99

56,667 placed at Isabela level itself; the rest in LGUs under it.

  1. Isabela₱206,082,170,662.99 · 56,667 awards · high confidence (area of delivery is this province only)
  2. Batangas, Bukidnon, Cagayan, Camarines Sur, Cotabato, Davao del Sur, Isabela, Pampanga, Tarlac₱112,839,000.00 · 2 awards · low confidence (area of delivery lists several provinces)
  3. Basilan, Isabela, Sulu, Tawi-Tawi, Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay₱38,348,411.40 · 1 awards · low confidence (area of delivery lists several provinces)
  4. Iloilo, Isabela₱3,146,289.62 · 36 awards · low confidence (area of delivery lists several provinces)
  5. Aurora, Cagayan, Ilocos Sur, Isabela₱2,584,900.00 · 1 awards · low confidence (area of delivery lists several provinces)
  6. Aurora, Bataan, Cagayan, Ilocos Norte, Ilocos Sur, Isabela, La Union, Marinduque, Nueva Vizcaya, Occidental Mindoro, Oriental Mindoro, Palawan, Pangasinan, Quirino, Romblon, Zambales₱2,281,640.00 · 1 awards · low confidence (area of delivery lists several provinces)

How linked: 56,667 by area of delivery is this province only; 53 by area of delivery lists several provinces.

Local Government Support Fund releases

DBM LGSF project releases by province, city/municipality and barangay. Source: DBM COMPASS

7 records · ₱55,000,000.00

  1. Construction of Storm Drainage Canal in Brgy. Magsaysay, Naguilian, Isabela₱15,000,000.00 · 2022 · high confidence (location columns in the DBM release)
  2. Concreting of Local Road at Barangay Roxas to Cagayan River, Naguilian₱15,000,000.00 · 2025 · high confidence (location columns in the DBM release)
  3. Construction of Farm-to-Market Road in Barangay Sunlife, Naguilian₱10,000,000.00 · 2023 · high confidence (location columns in the DBM release)
  4. Concreting of Local Road in Barangay Palattao, Naguilian, Isabela₱5,000,000.00 · 2025 · high confidence (location columns in the DBM release)
  5. Assistance to Indigent Individuals Or Families - Food Assistance/Rice Distribution Project₱5,000,000.00 · 2026 · high confidence (location columns in the DBM release)
  6. Construction of Multi-Purpose Building in Barangay Magsaysay, Naguilian₱2,700,000.00 · 2023 · high confidence (location columns in the DBM release)

How linked: 7 by location columns in the DBM release.

GAA budget lines naming this place

General Appropriations Act lines whose text ends in this city/municipality and province. Source: DBM General Appropriations Act

129 records · ₱2,041,069,000.00

60 placed at Naguilian level itself; the rest in LGUs under it.

  1. Construction of Cagayan River Flood Control Project at Barangay Minanga, Naguilian, Isabela₱100,000,000.00 · 2024 · medium confidence (GAA line text names the place)
  2. Construction of Cagayan River Flood Control Structure, Barangay Minanga, Phase 2, Naguilian, Isabela₱100,000,000.00 · 2025 · medium confidence (GAA line text names the place)
  3. Construction of River Flood Control Structure, Barangay San Manuel, Naguilian, Isabela₱100,000,000.00 · 2025 · medium confidence (GAA line text names the place)
  4. Rehabilitation of Cagayan River Flood Control Project Barangay Palattao (Continuation), Naguilian, Isabela₱100,000,000.00 · 2025 · high confidence (GAA line text names the place)
  5. Construction of Cagayan River Flood Control Project, Barangay Minanga, Naguilian, Isabela₱75,000,000.00 · 2025 · medium confidence (GAA line text names the place)
  6. Construction of Cagayan River Flood Control Project, Barangay Roxas, Naguilian, Isabela₱75,000,000.00 · 2025 · medium confidence (GAA line text names the place)

How linked: 129 by GAA line text names the place.

COA annual audit reports

Not yet linked: the COA reports loaded so far cover national agencies only. LGU audit reports are published at coa.gov.ph.

Published anomaly flags

Patterns in the linked records that reviewers checked and published. A flag is a question worth asking, not a finding of wrongdoing.

See all 14 published flags

Contractors on linked DPWH projects

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All 33 contractors on DPWH projects linked to Naguilian and the LGUs under it. Click a column to sort.

Advanced Foundation Const Systems CORP2₱1,036,359,935.150
Danysons Const And Development CORP Formerly: Danysons Const15₱661,269,018.462
A De Guia Const And Development CORP Formerly: A De Guia Const13₱592,619,151.330
Camberwell Const And Supplies41₱574,008,911.751
Mav Const Supply And Power Development5₱410,073,651.080
Jwu Const And Supply3₱288,925,778.674
Mar-Deb Const10₱253,126,525.890
Yzk Builders7₱201,065,808.611
Rrc CO INC Formerly: R R C Const4₱163,214,450.130
Road Edge Trading & Development Services2₱151,803,669.114
Mar-Deb Const & Development CORP Formerly: Mar-Deb Const & Development2₱148,472,310.050
Kael Const And Supply1₱96,450,016.270
L C Talon Const18₱91,125,870.040
Ma Tesoro Const1₱63,986,983.240
Egb Const CORP Formerly: Egb Const5₱57,310,497.101
Alphatec Chemical CORP1₱48,991,165.860
Orani Const And Supply CORP Formerly:Orani Builders1₱48,645,735.150
Jfo Const7₱42,333,507.220
Knb Const5₱22,513,123.070
4 A'S Const4₱13,742,468.940
E S Pua Const5₱12,193,915.290
Gcpk Const And Supply1₱11,939,901.960
D S T Metalcraft And Engineering Works5₱10,837,631.330
Colby Const2₱9,797,517.590
Dalcon Const1₱9,796,432.931

Costs as recorded by DPWH; single amounts of ₱10B+ are held for verification and excluded. Flags count published automated anomalies on this contractor's projects or awards here, plus flags on the contractor itself; they are not findings.

Taxes collected by the BIR in Isabela

BIR publishes collections by province and city, not by town or barangay. Naguilian is in Isabela.

₱4.72 billion

Collected, January-August 2026 (tentative BIR figures, ₱ million in the source)

Jan
Feb
Mar
Apr
May
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Aug

These are taxes collected by national BIR offices located here, including from businesses headquartered here. They are not the LGU’s own income. Source: BIR Revenue Accounting Division, Tentative internal revenue collections by region and province, January-August 2026 (BIR collection statistics). All provinces and cities

Proposed for 2027: DPWH projects

22 line items worth ₱798.3M in the FY2027 National Expenditure Program (FY2026 NEP: 15 worth ₱922.7M). Counted from lines that name Naguilian.

  • Alicia-Angadanan-San Guillermo-Cauayan City-Naguilian Alternate Route (Bridge and Approaches) (Sta. 32+321 - Sta. 32+701), Isabela · NEP p.164₱329.2M
  • Alicia-Angadanan-San Guillermo-Cauayan City-Naguilian Alternate Route (Sta. 35+799 - Sta. 36+361), Isabela · NEP p.164₱164.6M
  • Rehabilitation of Concrete Road, Barangay Minanga-Barangay Magsaysay (Ferry), Naguilian, Isabela · NEP p.322₱60.0M
  • Construction of Barangay Road, Barangay Villa Paz, Naguilian, IsabelaIsabela 3rd District Engineering Office · NEP p.366 · similar existing contract: Low confidence₱50.0M
  • Construction of Bridge Quinalabasa Bridge, Barangay Quinalabasa,(Sta. 0+000.00 - Sta. 0+061.00), Naguilian, IsabelaIsabela 3rd District Engineering Office · NEP p.366₱25.0M
  • Construction of Barangay Road, Barangay Minallo, Naguilian, IsabelaIsabela 3rd District Engineering Office · NEP p.366 · similar existing contract: Low confidence₱20.0M
  • Alibadabad Br. (B01177LZ) along Naguilian-Sn Mariano RdIsabela 3rd District Engineering Office · NEP p.226₱20.0M
  • Construction of Barangay Road, Barangay Burgos, Naguilian, IsabelaIsabela 3rd District Engineering Office · NEP p.366 · similar existing contract: Low confidence₱20.0M

Source: DBM Details of DPWH Programs/Projects, NEP FY2027 (scanned PDF read by OCR; page numbers given). Search all lines

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Barangays in Naguilian (25)

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