Alpine is an unincorporated community in Apache County, Arizona, United States, in Bush Valley in the east central part of the state. Alpine was settled in 1876 by Anderson Bush who built a log house originally known as "Fort Bush". Bush sold his holdings in 1879 to William Maxwell and Fred Hamblin, Mormon settlers who established the town as a Mormon community. Alpine is located at an elevation of 8,050 ft (2450m) in the eastern end of the White Mountains and surrounded by the Apache-Sitgreaves National Forest. Alpine is a popular destination for hunting, fishing, and camping. Alpine is near the headwaters of the San Francisco River and six miles from the New Mexico border. As of 1960, it was the highest place in place in the United States where farming was successfully occurring.

The Alpine post office has the ZIP code of 85920; the ZCTA for ZIP Code 85920 had a population of 256 at the 2000 census.

Alpine has a humid continental climate (Köppen Dfb) influence by its very high altitude and the North American Monsoon, which brings frequent thunder showers during the summer. Although temperatures are generally comfortable during the daytime, the sun is very intense and at night frosts have occurred even in summer and are an almost daily occurrence from October to May. Snowfall is less heavy than further west on the Mogollon Rim since Pacific moisture rarely reaches so far east.

Arizona (ⁱ/ɛrɪˈzoʊnə/; /ærɪˈzoʊnə/) (Navajo: Hoozdo Hahoodzo; O'odham: Alĭ ṣonak) is a state of the United States, located in the southwestern region of the country. Arizona is also part of the Western United States and of the Mountain West states. Arizona is the sixth most extensive and the 16th most populous of the 50 states. Its capital and largest city is Phoenix. The second largest city is Tucson, followed in population by eight cities of the Phoenix metropolitan area: Mesa, Chandler, Glendale, Scottsdale, Gilbert, Tempe, Peoria, and Surprise.

Arizona is the 48th state and last of the contiguous states to be admitted to the Union, and it achieved statehood on February 14, 1912. Arizona is noted for its desert climate in its southern half, where there are very hot summers and quite mild winters. The northern half of Arizona also features forests of pine, Douglas fir, and spruce trees, a very large, high plateau (the Colorado Plateau) and some mountain ranges—such as the San Francisco Mountains—as well as large, deep canyons, where there is much more moderate weather for three seasons of the year, plus significant snowfalls. There are ski resorts in the areas of Flagstaff and Alpine.