Guam Forest Area

Guam’s forest area has risen steadily over the 35‑year record, expanding from 44.44 thousand square kilometres in 1990 to an all‑time peak of 51.85 thousand square kilometres in 2025, placing the territory at rank 47 globally. The trough recorded in 2010 matched the 1990 level, after which a consistent upward trajectory resumed, culminating in the latest figure of 51.85. This growth outpaces that of nearby peers such as the Cayman Islands (52.22) and Angola (51.20), suggesting that Guam’s forest management policies have been relatively effective compared with other small island jurisdictions. The increase reflects both natural regeneration and modest reforestation initiatives, while the persistence of a low‑lying plateau between 1990 and 2010 indicates periods of limited investment. Continued expansion will likely depend on sustained funding for conservation programs and the mitigation of climate‑related pressures that could otherwise reverse the current positive trend.