Grant County may refer to:
In Australia
In the United States
Grant County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 7,445. The county seat is Canyon City. It is named for President Ulysses S. Grant, who served as an army officer in the Oregon Territory, and at the time of the county's creation was a Union general in the American Civil War.
Grant County is included in the 8 county definition of Eastern Oregon.
Grant County was established on October 14, 1864, from parts of old Wasco and old Umatilla counties. Prior to its creation, cases brought to court were tried in The Dalles, county seat of the vast Wasco County. The great distance to The Dalles made law enforcement a difficult problem, and imposed a heavy burden on citizens who had a need to transact business at the courthouse. In 1889, more than half of the southern part of the original Grant County was taken to form Harney County. Also in 1899, a small part of northwestern Grant County was taken (along with parts of Crook and Gilliam counties) to form Wheeler County.
Grant County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 89,120. The county seat is Ephrata, and the largest city is Moses Lake. The county was formed out of Douglas County on February 24, 1909 and is named for U.S. President Ulysses S. Grant.
Grant County comprises the Moses Lake, WA Micropolitan Statistical Area.
Native American cultures in the area included the Interior Salish, Wenatchi, Okanagan. The first white settlers began to arrive in the mid-to-late-19th century, primarily with the goal of raising livestock. One government official described the area in 1879 as, "…a desolation where even the most hopeful can find nothing in its future prospects to cheer."
When railroads arrived they also brought new settlers, and the economy began a shift from ranching to dryland farming. This transition required the people to have ready access to water, and irrigation became a necessity. The first large-scale irrigation attempts began in 1898, but it would be years before real success.