Colfax is the Whitman County seat, sitting at the confluence of the north and south forks of the Palouse River amid the deep topsoil that makes this the top wheat county in the United States. Whitman County ranked first in the nation for value of wheat sales in the 2022 Census of Agriculture at $337 million, nearly double the second-place county, and harvested 498,473 acres of grain, about 21 percent of the Washington state total.
The Palouse receives more than 20 inches of precipitation a year, enough to farm wheat without irrigation. In the 2022 harvest the county produced nearly 32 million bushels of winter wheat at 86 bushels per acre, plus spring wheat and barley. Pulses are a major rotation crop, and Washington harvested 141,000 acres of chickpeas along with dry peas and lentils in 2025.
Agnomy connects Colfax-area growers with verified local service providers who understand dryland grain systems, direct-seed drilling, and erosion control on Palouse slopes, making it easier to find, book, and manage the services your operation depends on.
