Total population (1990 census): 8409
County seat: Greenfield
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 543 | 93873 | 10829372 bu | |
| Oats | 122 | 2923 | 164436 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 518 | 88004 | 3423610 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 477 | 29518 | 74369 tons, dry | |
| Alfalfa Hay | 423 | 22218 | 61555 tons, dry | |
| Small Grain Hay | 102 | 2500 | 4671 tons, dry | |
| Tame Hay | 99 | 3926 | 6919 tons, dry | |
| Wild Hay | 6 | 224 | 352 tons dry | |
| Grass Silage | 17 | 650 | 2618 tons, grn | |
| Corn for Silage | 93 | 2686 | 38974 tons, grn | |
| Fruits | Farms | Acres | Yield | |
| Apples | 5 | 19 | 1610 trees | |
| 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 | 6 | D | 18 | 19 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.