Athens, Greece, had an estimated population of over 3.4 million people as of 2011. Athens is the capital and largest city of Greece and is located near the eastern coast of central Greece. Greece is estimated to have a total population of almost 10.8 million people as of 2014.
Athens covers an area of about 160 square miles. The second most populous city in Greece is Thessaloniki, which is located in the northern part of the country along the eastern coast. Thessaloniki had a population of nearly 900,000 people as of a 2011 estimate. Thessaloniki has an area in excess of 40 square miles.