Security-Widefield is a census-designated place (CDP) located in El Paso County, Colorado, in the United States. It comprises the unincorporated communities of Security and Widefield and serves as a residential area within the Front Range Urban Corridor.
As of the 2020 United States Census, the population of the Security-Widefield CDP was 38,639. The area is part of the Colorado Springs Metropolitan Statistical Area and is served by both the Colorado Springs and Fountain post offices.