Peoria is an unincorporated community and a census-designated place (CDP) located in and governed by Arapahoe County, Colorado, United States. The CDP is a part of the DenverâÂÂAuroraâÂÂLakewood, CO Metropolitan Statistical Area. The population of the Peoria CDP was 153 at the United States Census 2020. The Byers post office (ZIP code 80103) serves the area.
The Peoria CDP has an area of , including of water.
The United States Census Bureau initially defined the for the