Reef World Map

Reefs in numbers

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

4,466reefs mapped
141Countries covered
46Blog posts
2026-07-20Last updated

Top 10 countries

  • Canada491
  • Australia289
  • United States of America272
  • Indonesia198
  • Maldives164
  • French Polynesia156
  • Papua New Guinea155
  • Nicaragua146
  • United Kingdom132
  • France122

By continent

  • North America1,035 (24.9%)
  • Asia827 (19.9%)
  • Oceania754 (18.1%)
  • Europe753 (18.1%)
  • Other538 (12.9%)
  • Africa174 (4.2%)
  • South America79 (1.9%)