How may I help you today? I'd like to ask you a question about cities Sure, fire away! What is the average life expectancy in a city like Denver Checking... the life expectancy in Denver is roughly 80 years of age Would you say that is lower or higher compared to most other cities? The US has an average life expectancy of 78.74 years, so it's slightly higher Does Denver have the highest life expectancy in the state of Colorado Counties in central Colorado had the highest life expectancies at 87 years. Thank you for the information no problem!