Province of Ilocos Sur, Ilocos

County Snapshot

Province of Ilocos Sur at a glance

Province of Ilocos Sur currently has 23 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

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Mapped populated places

23

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Ilocos counties

4

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Largest city

Vigan

Population 48,545

Top linked places

Vigan 48,545 Tagudin 35,791 Santa Maria 28,002 Candon 11,236

State	Ilocos (Philippines)
Latitude & Longitude	17.1985,120.5420
Time Zone	Asia/Manila
Local time	13:21:40 (12th April 2026)

Geography

Province of Ilocos Sur is located at 17°11'55"N 120°32'31"E (17.1985200, 120.5419900).