Size ranking among Thai islands (source discrepancy)

Fact

Sources disagree on whether Koh Samui is Thailand's second- or third-largest island. English Wikipedia states Ko Samui is 'Thailand's second largest island after Phuket' (citing TAT), and states Koh Chang (about 210 km2) is third. However, several tourism sources (including texts attributed to TAT and Thaiways Magazine) call Samui the third-largest after Phuket and Koh Chang. Based purely on the published areas (Phuket ~543 km2; Samui 228.7 km2; Koh Chang island ~210 km2), Samui would rank second; the 'third' claim appears to stem from older texts or from counting the wider Koh Chang island group. Both claims are recorded.

Value

2nd largest (Wikipedia/TAT, by area comparison) vs 3rd largest after Phuket and Koh Chang (older tourism texts) - discrepancy recorded

Notes

Phuket is the largest Thai island (~543 km2). Koh Chang district area is 217 km2 including smaller islands; the island itself ~210 km2.