The O'Hare neighborhood in Chicago, Illinois, demonstrates a distinct demographic profile characterized by fluctuating population trends and high population density between 2010 and 2022. The population decreased from 27,346 in 2010 to 27,287 in 2011, then increased to 28,510 in 2012. This upward trend continued, reaching 29,411 residents in 2014.

Following the 2014 peak, the neighborhood experienced a gradual population decline until 2017, when it decreased to 28,077 residents. Subsequently, the area recovered, with the 2022 population reaching 29,417, nearly equivalent to its 2014 high point. This recent growth may indicate renewed interest in the neighborhood.

Throughout these changes, O'Hare maintained a high population density, consistently exceeding 8,000 people per square mile. The 2022 density of 8,446.76 people per square mile suggests a highly urbanized environment, typical of areas with residential high-rises and mid-rise apartment buildings.