Wanderlust World Wanderlust World According to official 2018 figures, Oslo's population stands at 693,494, making it the most populous capital city in Scandinavia.
Oslo outpaces Stockholm (~975,000 in the municipality, but ~2.4M metro) and Copenhagen (~645,000 municipal, ~2.1M metro) in city-proper population. The Oslo metropolitan area exceeds 1.5 million, anchoring Norway's economic, political, and cultural life.
Oslo has grown steadily due to immigration, domestic migration, and a strong labor market. Projections suggest the city proper could surpass 750,000 by 2030, driving ongoing infrastructure investment in housing, transit, and green space.
Note: 2018 is the latest finalized census data referenced; current estimates are higher.