Total population (1990 census): 15548
County seat: Monticello
CropSELECT
FruitsCrop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 390 | 120007 | 16982962 bu | |
| Wheat | 29 | 927 | 53246 bu | |
| Oats | 8 | 174 | 10624 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 67 | 1387 | 4250 tons, dry | |
| Alfalfa Hay | 47 | 785 | 2626 tons, dry | |
| Small Grain Hay | 4 | 103 | 157 tons, dry | |
| Tame Hay | 24 | 409 | 1248 tons, dry | |
| Wild Hay | 5 | (D) | (D) | |
| Corn for Silage | 12 | 247 | 2980 tons, grn | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 387 | 120098 | 5395970 bu | |
| Vegetables | Farms | Acres | Yield | |
| Pumpkins | 3 | 4 | ||
| 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 | 9 | (D) | 74 | 187 |
| Cut Christmas Trees Harvested | 5 | (X) | 23 | 87 |
| Nursery Crops | 3 | - | 30 | 54 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.