Where is koh samui

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Last updated: April 8, 2026

Quick Answer: Koh Samui is an island located in the Gulf of Thailand, approximately 700 kilometers south of Bangkok in Surat Thani Province. It is the second-largest island in Thailand after Phuket, covering an area of about 228.7 square kilometers, with a population of around 63,000 people as of 2018.

Key Facts

Overview

Koh Samui is a tropical island situated in the Gulf of Thailand, belonging to Surat Thani Province in southern Thailand. It is part of the Samui Archipelago, which consists of over 60 islands, with Koh Samui being the largest and most developed. The island has transformed from a quiet fishing community into one of Thailand's premier tourist destinations, known for its palm-fringed beaches, luxury resorts, and vibrant nightlife.

The island's history dates back to the 6th century when it was first settled by fishermen from the Malay Peninsula and southern China. It remained relatively isolated until the 1970s when backpackers began discovering its pristine beaches. Today, Koh Samui has a population of approximately 63,000 people and welcomes over 2.7 million visitors annually, contributing significantly to Thailand's tourism economy.

How It Works

Koh Samui functions as a self-contained destination with comprehensive infrastructure supporting tourism and local life.

Key Comparisons

FeatureKoh SamuiPhuket
Size228.7 square kilometers543 square kilometers
Annual Visitors2.7 million9.2 million
Beach LengthApproximately 50 km of coastlineApproximately 70 km of coastline
Airport Traffic1.5 million passengers annually16 million passengers annually
Hotel RoomsOver 25,000 roomsOver 80,000 rooms

Why It Matters

Looking forward, Koh Samui faces challenges balancing tourism growth with sustainability, particularly regarding water resources (the island consumes approximately 45,000 cubic meters daily) and waste management. Development plans focus on eco-tourism expansion, aiming to increase green-certified accommodations by 30% by 2025 while maintaining the island's natural beauty that initially attracted visitors.

Sources

  1. WikipediaCC-BY-SA-4.0

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