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The 2020 population estimate for the city of Aurora is 386,261**. In the last 50 years, Aurora's population has changed dramatically. We've grown by about 300,000 people during that time period. We are currently the third largest city in Colorado and 54th largest city in the country.

Population Counts and Porjections

Source: US Census Bureau, Decennial Census 2010; City of Aurora Planning and Development Services Department, **2020 Decennial Census - U.S Census Bureau 

Source: US Census Bureau, American Community Survey Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2019.


Compared to the Metro Area and the State, Aurora is a relatively young community with a high percentage of our population in the Millennial and Generation Z age groups. Together, those age groups make up 208,726 residents (58%) of the city's total population.

Source: U.S Census Bureau 2014-2018 ACS 5-Year Estimates

Race and Ethnicity

Aurora is a very diverse city. We have residents of many races and ethnicities. 39% of Aurora's residents identify with a race other than white or Caucasian, while 28% identify with being either Hispanic or Latino.


What is the difference? Race vs Ethnicity 

Race and ethnicity are social constructs used to identify people. The two categories are often used interchangeably and incorrectly. 
Race refers to a person's physical characteristics. Race is often used to describe someone based on their skin color or other physical attributes.
Ethnicity refers to a group of people that identify with one another based on language, culture, nationality or religion.