Question: what is the population of the greater denver area

title: Denver
text: Denver is ranked as a Beta - world city by the Globalization and World Cities Research Network . With an estimated population of 704,621 in 2017 , Denver is the 19th-most populous U.S. city , and with a 17.41 % increase since the 2010 United States Census , it has been one of the fastest - growing major cities in the United States . The 10 - county Denver - Aurora - Lakewood , CO Metropolitan Statistical Area had an estimated 2017 population of 2,888,227 and is the 19th most populous U.S. metropolitan statistical area . The 12 - city Denver - Aurora , CO Combined Statistical Area had an estimated 2016 population of 3,470,235 and is the 16th most populous U.S. metropolitan area . Denver is the most populous city of the 18 - county Front Range Urban Corridor , an oblong urban region stretching across two states with an estimated 2016 population of 4,833,260 . Denver is the most populous city within a 500 - mile ( 800 km ) radius and the second-most populous city in the Mountain West after Phoenix , Arizona . In 2016 , Denver was named the best place to live in the United States by U.S. News & World Report . 

Answer: answer: Denver had an estimated population of 704,621 in 2017, the 12 city Denver - Aurora , CO Combined Statistical Area had an estimated 2016 population of 3,470,235.