Copenhagen ranked No. 1 in EIU's new list. Klaus Vedfelt/Getty Images EIU released its annual global ranking of livability. The ranking of more than 100 cities is based on five measures, including healthcare and education. Copenhagen held on to the top spot. Copenhagen is still the most livable city in the world. That's based on the Economist Intelligence Unit's new ranking of 173 cities, using five measures to rank the quality of life: stability, healthcare, culture and environment, education