Wasatch County is part of the Heber, UT Micropolitan Statistical Area as well as the Salt Lake City-Provo-Orem, UT Combined Statistical Area.

The first settlers were Mormon pioneers, in 1859, settling near present Heber City, Midway, and Charleston.

On January 17, 1862, the Utah Territory legislature created the county, annexing areas from Great Salt Lake, Green River, Sanpete, Summit, and Utah counties.

[3] Heber Valley has a relatively cool climate since it is mountain-ringed, and over half the land is 7,500 feet (2,300 metres) above sea level.

The county is divided into two watersheds—the Colorado and the Great Basin drainage systems.

[4] Flowing from the East are Daniels, Lake Fork, and Center creeks.

There were 11,040 households in Wasatch County with an average size of 3.15 of which 8,770 (79.4%) were families and 2,270 (20.6%) were non-families.

As of the 2010 United States Census, there were 23,530 people, 4,743 households, and 3,870 families in the county.

15.5% of all households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older.

In no national election since 1964 has the county selected the Democratic Party candidate (as of 2024).