Reef World Map

Reefs in numbers

A live snapshot of the reefs Reef World Map has mapped worldwide, drawn from OpenStreetMap.

4,586reefs mapped
141Countries covered
63Blog posts
2026-07-20Last updated

Top 10 countries

  • Canada491
  • Indonesia315
  • Australia289
  • United States of America272
  • Maldives164
  • French Polynesia156
  • Papua New Guinea155
  • Nicaragua146
  • United Kingdom133
  • France122

By continent

  • North America1,105 (25.8%)
  • Oceania1,006 (23.5%)
  • Asia994 (23.2%)
  • Europe762 (17.8%)
  • Africa213 (5.0%)
  • Other111 (2.6%)
  • South America87 (2.0%)