Are penguin populations declining?
Many penguin populations are declining, though the picture varies by species. African penguin numbers have dropped by more than 95% over the past century. Chinstrap penguin colonies on some Antarctic islands have shrunk by over 75% since the 1970s. Emperor penguins face projected population declines of up to 80% by 2100 under high-warming scenarios. However, some species are stable or increasing — gentoo penguins have expanded their range southward as temperatures rise, and king penguin populations on some sub-Antarctic islands have grown. Overall, a majority of living penguin species show declining or mixed population trends.
Related Species
Profiles connected to this answer — continue into habitat, diet, and conservation detail.

African Penguin
Spheniscus demersus

Chinstrap Penguin
Pygoscelis antarcticus

Emperor Penguin
Aptenodytes forsteri

Gentoo Penguin
Pygoscelis papua

King Penguin
Aptenodytes patagonicus
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Where this answer comes from
Reference bodies behind our conservation answers. Links last checked August 5, 2026.
- IUCN Red List - Global conservation assessments and extinction-risk categories.
- BirdLife Data Zone - Species accounts, distribution, and population summaries.
- SANCCOB - African penguin rescue, rehabilitation, and conservation context.
- New Zealand Department of Conservation Penguins Hub - New Zealand penguin species, threats, and habitat guidance.
