The Sanpete Valley may have been traversed or inhabited as long as 32,000 BP by small bands of hunters.[citation needed] This habitation may have continued for about 20,000 years when the extinction of larger game animals forced a change. About 8,500 years ago, different groups[specify] (characterized by use ofatlatls, millstones and textiles) came onto the scene. These also departed the area about 2,500 years ago, for unknown reasons, after which the area does not seem to have been visited by humans for 1,500 years.
Archeological evidence indicates that theFremont people appeared next on the stage (from about 1-1300 CE), the first inhabitants of the area to domesticate crops and create relatively large communal settlements. In this county, the best-known Fremont site to date is "Witch's Knoll" three miles (4.8 km) SE of Ephraim. Around 1300 AD the evidence of Fremont habitation also ceases. The most recent groups of indigenous Americans in the Sanpete region are theUte,Paiute,Goshute, andShoshoni, who appeared in Utah about 1300 and "perhaps they displaced, replaced, or assimilated the part-time Fremont hunter-gatherers."[4] The Utes, Paiutes, Goshute and Shoshone share a common language family calledNumic.[5]
Mormon pioneers arrived in theGreat Basin in the summer of 1847. The first few years were spent establishing a base in the Great Salt Lake Valley, then groups were sent, usually by the directive of the church leaders, to settle the more outlying areas. In 1849 two Ute chiefs traveled from what is now Sanpete County about 125 miles (201 km) north to the Salt Lake Valley to request a Mormon settlement be established. The chiefs,Walkara and Sowiette, asked Mormon leaderBrigham Young to settle a group of his people in the valley of Sanpitch.[5] Young sent a party to explore the area in August of that year. It was deemed favorable to settlement, and Brigham Young called Isaac Morley and George Washington Bradley to organize about fifty families to move south and settle "San Pete."[5] The group of 224 arrived on November 19, led by Isaac Morley, Charles Shumway, Seth Taft, and George Washington Bradley. After some debate, the first settlement in the valley was established on the present site ofManti, Utah.[5]
TheState of Deseret enacted the county effective January 31, 1850. The region was named for theUte chiefSanpitch, which was changed to Sanpete.[6] According toWilliam Bright, the name comes from the Ute wordsaimpitsi, meaning "people of thetules".[7]
The county boundaries were adjusted more than a dozen times during the 19th century. These adjustments often shrank it from its previous size. As of 1880, the county of Sanpete included the area of what would later become modern-day Carbon County, as well as some of Emery, Uintah, and Grand Counties.[8] An adjustment in 1913 and refining of the county boundary definitions in 1919 brought Sanpete County to its present configuration.[9]
The Sanpete Valley runs from north to south through the center of the county.[11] The county is sloped to the south, with its highest point east of Ephraim, on South Tent Mountain[11] at 11,285 ft (3,440 m) ASL.[12] The county has a total area of 1,603 square miles (4,150 km2), of which 1,590 square miles (4,100 km2) is land and 12 square miles (31 km2) (0.8%) is water.[13] The geographical center of Utah is located in Sanpete County, just west of Ephraim.
Sanpete County is bounded along its eastern side by theWasatch Plateau (sometimes known as the Manti Mountains). The Wasatch Plateau rises to approximately 11,000 feet (3,400 m). Most of the Wasatch Plateau is encompassed by the Manti Division of theManti-La Sal National Forest. Runoff from the western slopes of these mountains provides water to the county's cities and agricultural areas. Central Sanpete is dominated by the Sanpete Valley (sometimes known as the Sanpitch Valley), where most of the county's cities are located. The western side of the valley is bounded by the lower and drierSan Pitch Mountains, which also form part of the western boundary of the county. TheSan Pitch River runs from north to south through Sanpete and empties into theSevier River in southwestern Sanpete. This portion of the Sevier River Valley is known asGunnison Valley.
There were 15,266 (53.68%) males and 13,171 (46.32%) females, and the population distribution by age was 8,003 (28.1%) under the age of 18, 15,846 (55.7%) from 18 to 64, and 4,588 (16.1%) who were at least 65 years old. The median age was 33.7 years.
There were 8,394 households in Sanpete County with an average size of 3.39 of which 6,459 (76.9%) were families and 1,935 (23.1%) were non-families. Among all families, 5,387 (64.2%) weremarried couples, 389 (4.6%) were male householders with no spouse, and 683 (8.1%) were female householders with no spouse. Among all non-families, 1,610 (19.2%) were a single person living alone and 325 (3.9%) were two or more people living together. 3,190 (38.0%) of all households had children under the age of 18. 6,473 (77.1%) of households wereowner-occupied while 1,921 (22.9%) wererenter-occupied.
The median income for a Sanpete County household was $55,820 and the median family income was $65,047, with aper-capita income of $21,254. The median income for males that werefull-time employees was $51,250 and for females $32,833. 14.8% of the population and 9.3% of families were below thepoverty line.
Turkeys in a typical holding pen in northern Sanpete County near Moroni
Sanpete County is a largely agricultural region of the state, dotted with rural farming towns. Agriculture, livestock, small businesses, government employment, andSnow College form the economic backbone of the county.
A significant industry in the county is turkey ranching and the Moroni Feed Company, aturkey producing and processing cooperative. Moroni Feed Company is a part owner of the marketing cooperativeNorbest.[22] Moroni Feed Company operates several divisions throughout the county, including a turkey processing plant, hatchery, feed mill, propane store, and sales office located in and near the town ofMoroni. The company employs over 600 people throughout the state, with the corporate headquarters located near Moroni. Numerous turkey barns and sheds dot the landscape, primarily around Moroni and the other northern Sanpete towns.
Alfalfa fields and other animal feed crops make up the bulk of the agricultural activity and economy of the county.
Sanpete County has traditionally voted Republican. In no national election since 1936 has the county selected the Democratic Party candidate (as of 2024).