Total population (1990 census): 140510
County seat:
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 688 | 62597 | 7739525 bu | |
| Wheat for Grain, Total | 159 | 5387 | 257985 bu | |
| Winter Wheat | 157 | D | D | |
| Barley | 28 | 625 | 41502 bu | |
| Oats | 247 | 5184 | 353815 bu | |
| Rye | 6 | 116 | 4899 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 364 | 29649 | 1215823 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 788 | 61215 | 148150 tons, dry | |
| Alfalfa Hay | 605 | 25461 | 72468 tons, dry | |
| Small Grain Hay | 73 | 1942 | 4412 tons, dry | |
| Tame Hay | 95 | 2064 | 4748 tons, dry | |
| Wild Hay | 40 | 776 | 1158 tons dry | |
| Grass Silage | 393 | 30972 | 196112 tons, grn | |
| Corn for Silage | 526 | 23834 | 365211 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Snap Bean | 24 | 863 | ||
| Broccoli | 3 | Z | ||
| Head Cabbage | 20 | 1838 | ||
| Cauliflower | 5 | 5 | ||
| Cucumbers & Pickles | 5 | D | ||
| Dry Onions | 5 | 4 | ||
| Green Peas | 54 | 1969 | ||
| Hot Peppers | 3 | 1 | ||
| Sweet Peppers | 5 | 2 | ||
| Pumpkins | 14 | 100 | ||
| Squash | 9 | 13 | ||
| Sweet Corn | 68 | 2711 | ||
| Tomatoes | 6 | 4 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 13 | 64 | 4919 trees | |
| Raspberries | 3 | 1 | 840 lbs | |
| Strawberries | 3 | D | D | |
| 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 | 42 | 593662 | 1046 | 5886 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 6 | X | 30 | X |
| Florculture Crops | 20 | 591562 | D | 3995 |
| Bedding/Garden Plants | 16 | 444672 | 43 | 3197 |
| Potted Flowering Plants | 9 | D | D | D |
| Cut Christmas Trees Harvested | 13 | X | 161 | 501 |
| Nursery Crops | 12 | D | 185 | 706 |
| Other Nursery and Greenhouse Crops | 9 | D | 165 | 12 |
| Herb, Spice, Medicinal, Bioactive... | Farms | Acres | Yield | |
| Other | 3 | 104 | X | |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.
Z=Less than half of the unit shown.