Total population (1990 census): 8752
County seat: Hillsboro
CropSELECT
Cereals, Pseudocereals, Oilseeds
Industrial, Fiber
Forages
Vegetables
Small Fruits
Tree Fruits and Nuts
Herb, Aromatic, Medicinal, and Bioactive
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 145 | 26529 | 2786526 bu | |
| Wheat for Grain, Total | 370 | 176466 | 4990416 bu | |
| Durum Wheat | 13 | 1923 | 55133 bu | |
| Other Spring Wheat | 369 | 173862 | 4914245 bu | |
| Winter Wheat | 4 | 681 | 21038 bu | |
| Barley | 223 | 48594 | 2393947 bu | |
| Oats | 9 | 536 | 32611 bu | |
| Sunflower Seed | 70 | 11667 | 13570671 lbs | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybeans for Beans | 350 | 110262 | 3069419 bu | |
| Dry Edible Beans | 190 | 54181 | 668022 cwt | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 66 | 8344 | 16350 tons, dry | |
| Alfalfa Hay | 57 | 5875 | 12771 tons, dry | |
| Small Grain Hay | 8 | D | 2671 tons, dry | |
| Tame Hay | 4 | 78 | D | |
| Wild Hay | 14 | 512 | 609 tons dry | |
| Corn for Silage | 13 | 1515 | 15850 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Sugar Beets for Sugar | 116 | 31044 | 538587 tons | |
| Potatoes | 14 | 2232 | 325783 cwt | |
| 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 | 5 | D | 17 | 14 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.