Total population (1990 census): 7975
County seat: Ada
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 134 | 16053 | 1254597 bu | |
| Wheat for Grain, Total | 365 | 175570 | 4806167 bu | |
| Spring Wheat for Grain | 355 | 171661 | 4688784 bu | |
| Winter Wheat for Grain | 41 | 3909 | 117383 bu | |
| Barley | 189 | 35960 | 1596652 bu | |
| Oats | 51 | 2088 | 116204 bu | |
| Sunflower | 34 | 4536 | 4563377 lbs | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 317 | 87583 | 2445625 bu | |
| Dry Edible Beans | 28 | 5535 | 68981 cwt | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 213 | 16206 | 45424 tons, dry | |
| Alfalfa Hay | 198 | 14066 | 42404 tons, dry | |
| Small Grain Hay | 11 | 171 | 279 tons, dry | |
| Tame Hay | 24 | 825 | 1198 tons, dry | |
| Wild Hay | 33 | 625 | 830 tons dry | |
| Grass Silage | 10 | 519 | 2140 tons, grn | |
| Corn for Silage | 65 | 2284 | 22755 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Sugar Beets for Sugar | 158 | 40683 | 699047 t | |
| Potatoes | 5 | 607 | 58149 bu | |
| Nursery and Greenhouse Crops, Cut Christmas Trees Harvested, Mushrooms, and Sod Grown for Sale | Farms | Sq. ft. under glass or other protection | Acres in the open | Sales ($1,000) |
| Nursery and Greenhouse Crops | 3 | D | D | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.