Greer is an unincorporated community in Apache County, Arizona, United States. It lies at an elevation of approximately 8,600 feet in the White Mountains of Arizona, and is surrounded by the Apache-Sitgreaves National Forest. Greer was founded around 1879 by Mormon settlers from Utah. The Greer post office has the ZIP code of 85927; the ZCTA for ZIP Code 85927 had a population of 177 at the 2000 census. Greer is located near the towns of Springerville and Eagar in Northeast Arizona, near the New Mexico border. Its position in the valley of the Little Colorado River near various lakes means that temperatures are significantly milder than surrounding areas. Sunrise Park Resort, a skiing resort, is located about half an hour's drive west. While Greer is over a four hour drive from Phoenix and a five hour drive from Tucson, it remains one of the most popular summer vacation destinations in Arizona, as it is consistently 20-30 degrees cooler than the deserts.