United Kingdom

The United Kingdom's 69.3 million residents across 244,000 square kilometers create a density of 284 people per square kilometer—higher than #2 Germany's 234 and nearly 1,000% more concentrated than Russia's. Its population grew by 0.8% in 2023, outpacing #4 France's 0.3% and the European average of 0.2%, driven by net migration of 606,000. Post-Brexit trade, however, contracted by 5% versus 2022.