Insider The population of Atlanta is expected to grow by nearly three million over the next few decades. Tetra Images/Getty Images The COVID-19 pandemic exposed cracks in infrastructure, mobility challenges, and a digital divide. These US cities will remain resilient due to investing in things like sustainable technology and innovation. As a result, places like Raleigh-Durham, Denver, and Atlanta are some of the fastest-growing cities. Visit the Business section of Insider for more stories. If city leaders across the country learned anything from the past year, it's the value of resilience.