Bailey is an unincorporated town and U.S. Post Office in northeastern Park County , Colorado , United States . The ZIP Code of the Bailey Post Office is 80421. Bailey is in the Mountain Time Zone . The community is located along U.S. Route 285 at 39ﾰ242183 N, 105ﾰ282193 W (39.405, -105.472), at an elevation of 7756 feet (2364 meters). The community is located in the foothills of the Front Range , approximately 30 miles (48 km) southwest of Denver along U.S. Highway 285 . It is located on the east side of Kenosha Pass , along the valley of the North Fork South Platte River and is one of the largest communities in the Platte Canyon region. The town community consists of several small businesses, restaurants & the Platte Canyon Community Church; most homes exist throughout various mountainside divisions located atop Crow Hill or throughout the river basin. Platte Canyon High School serves the area high school students, PCHS is a 3A school in the Metro League with aproximately 500 students.