Altonah is an unincorporated community

Unincorporated area

In law, an unincorporated area is a region of land that is not a part of any municipality.To "incorporate" in this context means to form a municipal corporation, a city, town, or village with its own government. An unincorporated community is usually not subject to or taxed by a municipal government...

 in central Duchesne County

Duchesne County, Utah

Duchesne County is a county located in the U.S. state of Utah. As of 2010 the population was 18,607, a 29.5% increase over the 2000 figure of 14,371. Its county seat is Duchesne and the largest city is Roosevelt.-Geography:...

, Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, and on the Uintah and Ouray Indian Reservation

Uintah and Ouray Indian Reservation

The Uintah and Ouray Indian Reservation is located in northeastern Utah, USA. It is the homeland of the Northern Ute Tribe, and is the largest of three Indian reservations inhabited by members of the Ute Tribe of Native Americans. It lies in parts of seven counties; in descending order of land area...

. It lies along local roads north of State Route 87

Utah State Route 87

Utah State Route 87 is a state highway in the U.S. state of Utah. Over a span of , it connects the communities of Altamont, Boneta, Bluebell, and Upalco to Duchesne and US-40/191 in Duchesne County.-Route description:...

, north of the city of Duchesne

Duchesne, Utah

Duchesne is a city in and the county seat of Duchesne County, Utah, United States. The population was 1,690 at the 2010 census.-Geography:Duchesne city is located at . just west of the junction of the Strawberry and Duchesne rivers in the Uintah Basin of northeastern Utah...

, the county seat

County seat

A county seat is an administrative center, or seat of government, for a county or civil parish. The term is primarily used in the United States....

 of Duchesne County. Its elevation is 6,673 feet (2,034 m). Although Altonah is unincorporated, it has a post office

Post office

A post office is a facility forming part of a postal system for the posting, receipt, sorting, handling, transmission or delivery of mail.Post offices offer mail-related services such as post office boxes, postage and packaging supplies...

, with the ZIP code

ZIP Code

ZIP codes are a system of postal codes used by the United States Postal Service since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the...

of 84002.

Altonah was originally settled in 1906, under the name of Alexander. It was renamed in 1912.