Ilocos Region

Barangays in Ilocos Norte Province

Ilocos Norte is a province in Ilocos Region with 23 cities and municipalities and 559 barangays.

Population & Statistics

2024 POPCEN

Total Population (2024): 618,850
Population (2020): 609,588
Population (2015): 593,081
Growth (2020 → 2024): +1.5%

Income classification: 1st

Barangay Insights for Ilocos Norte

The most populous barangay in Ilocos Norte is Brgy. No. 1, San Lorenzo (Pob.) with 5,310 residents, while the smallest with a reliable count is Brgy. Sapat (68). Of the 559 barangays with a classification on record, 7% are urban and 93% rural. Elected-officials records are documented for 100% of the 559 barangays here.

Barangays: 559
Avg. population: 1,107
Median population: 983
Officials documented: 100%
Urban: 7%

Most populous

Brgy. No. 1, San Lorenzo (Pob.)

5,310 residents

Smallest (reliable count)

Brgy. Sapat

68 residents

Fastest growing (2020 to 2024)

Brgy. Santo Niño

+46.7%

Aggregated from official Philippine Statistics Authority census data and Philippine Standard Geographic Code records by the Barangay Directory editorial team. See our methodology.

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Most Populous Barangays in Ilocos Norte

The largest barangays in Ilocos Norte by population, from the latest Philippine Statistics Authority census.

Full ranking →

1.Brgy. No. 1, San Lorenzo (Pob.)— 5,310
2.Brgy. Davila— 4,011
3.Brgy. San Marcelino— 3,933
4.Brgy. Quiling Sur— 3,552
5.Brgy. San Marcos— 3,531
6.Brgy. Tabug— 3,474
7.Brgy. Poblacion— 3,241
8.Brgy. Baay— 3,226
9.Brgy. Nagbacalan— 3,131
10.Brgy. San Juan Bautista (Pob.)— 3,123

Frequently Asked Questions about Ilocos Norte

How many barangays are in Ilocos Norte?▾

Ilocos Norte has 559 barangays across 23 cities and municipalities in the Ilocos Region region of the Philippines.

What is the most populous barangay in Ilocos Norte?▾

The most populous barangay in Ilocos Norte is Brgy. No. 1, San Lorenzo (Pob.) with 5,310 residents, based on the latest census published by the Philippine Statistics Authority.

What is the population of Ilocos Norte?▾

Ilocos Norte had a population of 618,850 according to 2024 POPCEN.

What is the income classification of Ilocos Norte?▾

Ilocos Norte is classified as a 1st by the Bureau of Local Government Finance, based on its average annual regular income.

When was this page last updated?▾

The information on this page for Ilocos Norte was last updated on 2026-07-01. Barangay counts, population figures, and classifications can change over time; always verify with the local government unit before relying on this information for official transactions.