Antarctica

no permanent inhabitants, but staff is present at year-round and summer-only research stations note: 56 countries have signed the 1959 Antarctic Treaty; 30 of those operate a number of seasonal-only (summer) and year-round research stations on the continent and its nearby islands; the population varies from approximately 5,000 in summer to 1,100 in winter, with about 1,000 support personnel on ships nearby as of 2024, peak summer (December-February) maximum capacity in scientific stations - 4,713 total; Argentina 425, Australia 238, Belarus 15, Belgium 55, Brazil 64, Bulgaria 25, Chile 375, China 164, Czechia 32, Ecuador 35, Finland 16, France 136, France and Italy jointly 70, Germany 60, India 72, Italy 150, Japan 130, South Korea 158, New Zealand 85, Norway 60, Peru 30, Poland 41, Russia 211, South Africa 80, Spain 79, Sweden 16, Ukraine 15, United Kingdom 315, United States 1,495 , Uruguay 66 (2024) winter (June-August) maximum capacity in scientific stations - 1,056 total; Argentina 221, Australia 52, Brazil 15, Chile 114, China 32, France 24, France and Italy jointly 13, Germany 9, India 48, Japan 40, Netherlands 10, South Korea 25, NZ 11, Norway 7, Poland 16, Russia 125, South Africa 15, Ukraine 12, UK 44, US 215, Uruguay 8 (2024)