Trivia: What is the most populous capital city in the U.S.?
Trenton, New Jersey
Phoenix, Arizona
Pierre, South Dakota
Juneau, Alaska
The correct answer is Phoenix, Arizona
So why is this answer correct? : As of the 2020 census, the population of Phoenix, Arizona, was just over 1,700,000. Phoenix’s booming economy and sunny weather have attracted tech companies and manufacturers to its desert landscapes, particularly in recent years: According to World Atlas, 755,000 people have moved to the Phoenix metro area since 2010, an average of about 207 people per day.