Total population (1990 census): 18497
County seat: Caledonia
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 617 | 67237 | 9110078 bu | |
| Wheat for Grain, Total | 9 | 324 | 12096 bu | |
| Spring Wheat for Grain | 9 | 324 | 12096 bu | |
| Barley | 64 | 1169 | 61183 bu | |
| Oats | 238 | 4929 | 286019 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 278 | 32398 | 1322194 bu | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 7 | 102 | X | |
| Vetch Seed | 7 | 102 | 18496 lbs | |
| Total Hay* | 668 | 44752 | 133604 tons, dry | |
| Alfalfa Hay | 609 | 32786 | 107135 tons, dry | |
| Small Grain Hay | 125 | 2186 | 4976 tons, dry | |
| Tame Hay | 66 | 1761 | 4375 tons, dry | |
| Wild Hay | 20 | 346 | 636 tons dry | |
| Grass Silage | 136 | 7673 | 49442 tons, grn | |
| Corn for Silage | 283 | 6599 | 114583 tons, grn | |
| Fruits | Farms | Acres | Yield | |
| Apples | 5 | 251 | 39204 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 | 4 | D | D | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.