Reef World Map

Reefs in numbers

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

4,649reefs mapped
143Countries covered
94Blog posts
2026-08-24Last updated

Top 10 countries

  • Canada491
  • United States of America322
  • Indonesia316
  • Australia289
  • Maldives164
  • French Polynesia156
  • Papua New Guinea155
  • Nicaragua146
  • United Kingdom133
  • France122

By continent

  • North America1,155 (26.6%)
  • Oceania1,006 (23.2%)
  • Asia1,003 (23.1%)
  • Europe765 (17.6%)
  • Africa214 (4.9%)
  • Other111 (2.6%)
  • South America87 (2.0%)