It is named after Jedediah Morgan Grant, a leader in the Church of Jesus Christ of Latter-day Saints who served as an apostle and as a member of the LDS First Presidency under Brigham Young in the mid-1850s.
There were 822 housing units at an average density of 257.0 per square mile (99.2/km2).
15.0% of all households were made up of individuals, and 8.9% had someone living alone who was 65 years of age or older.
According to the United States Census Bureau, the city has a total area of 3.2 square miles (8.3 km2), all land.
It has a humid continental climate with warm summers (Köppen Dfb).