Total population (1990 census): 74252
County seat: Nevada
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 705 | 153984 | 21728167 bu | |
| Wheat for Grain, Total | 6 | 78 | 3992 bu | |
| Oats | 57 | 804 | 60090 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 688 | 145726 | 6578229 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 264 | 5459 | 16024 tons, dry | |
| Alfalfa Hay | 234 | 4336 | 13846 tons, dry | |
| Small Grain Hay | 30 | 326 | 727 tons, dry | |
| Tame Hay | 38 | 481 | 817 tons, dry | |
| Wild Hay | 7 | D | 86 tons dry | |
| Grass Silage | 5 | D | 1646 tons, grn | |
| Corn for Silage | 36 | 1428 | 24063 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Asparagus | 3 | 8 | ||
| Cucumbers & Pickles | 3 | Z | ||
| Pumpkins | 6 | 10 | ||
| Squash | 4 | 2 | ||
| Sweet Corn | 8 | 34 | ||
| Tomatoes | 7 | 8 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 8 | 37 | 4139 trees | |
| Raspberries | 3 | 1 | 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 | 16 | D | 150 | 789 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 4 | X | 11 | X |
| Florculture Crops | 6 | D | D | D |
| Bedding/Garden Plants | 3 | D | D | D |
| Cut Flowers and Cut Florist Greens | 3 | D | D | D |
| Cut Christmas Trees Harvested | 4 | X | 22 | 20 |
| Nursery Crops | 4 | D | 33 | 70 |
| Sod Harvested | 5 | X | 90 | 95 |
*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.