Total population (1990 census): 69770
County seat: Corunna
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 426 | 45943 | 4846427 bu | |
| Wheat for Grain, Total | 356 | 21835 | 1188692 bu | |
| Spring Wheat | 7 | 297 | 13640 bu | |
| Winter Wheat | 350 | 21538 | 1175052 bu | |
| Barley | 9 | 122 | 8400 bu | |
| Oats | 57 | 1451 | 97036 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 535 | 81564 | 2578669 bu | |
| Dry Edible Beans, Excluding Dry Limas | 7 | 145 | 2171 cwt | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 5 | (D) | (X) | |
| Red Clover Seed | 5 | (D) | 104950 lbs | |
| Total Hay* | 362 | 16172 | 39063 tons, dry | |
| Alfalfa Hay | 310 | 11597 | 30825 tons, dry | |
| Small Grain Hay | 11 | 237 | 443 tons, dry | |
| Tame Hay | 49 | 1029 | 2240 tons, dry | |
| Wild Hay | 25 | 397 | 609 tons dry | |
| Grass Silage | 34 | 2912 | 14840 tons, grn | |
| Corn for Silage | 72 | 3856 | 53661 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Cantaloupes | 3 | 1 | ||
| Sweet Peppers | 3 | 2 | ||
| Pumpkins | 4 | 11 | ||
| Squash | 7 | 4 | ||
| Sweet Corn | 17 | 56 | ||
| Tomatoes | 7 | 3 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 20 | 77 | 7510 trees | |
| Cherries, Total | 6 | (D) | (D) | |
| Sweet Cherries | 6 | (D) | (D) | |
| Tart Cherries | 4 | (D) | (D) | |
| Grapes | 6 | 3 | 1166 vines | |
| Peaches | 5 | 1 | 57 trees | |
| Pears | 5 | 2 | (D) | |
| Other Fruits and Nuts | 4 | (D) | (D) | |
| Raspberries | 3 | 2 | 2635 lbs | |
| Other Crops | Farms | Acres | Yield | |
| Mint for Oil (Pounds of Oil) | 4 | 356 | 10767 lbs | |
| 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 | 29 | 8570 | 1064 | 2260 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 6 | (X) | (D) | (X) |
| Florculture Crops | 4 | (D) | (D) | (D) |
| Bedding/Garden Plants | 3 | (D) | (D) | (D) |
| Cut Christmas Trees Harvested | 9 | (X) | 28 | 33 |
| Nursery Crops | 13 | (D) | 328 | 1401 |
| Sod Harvested | 3 | (X) | (D) | (D) |
| Other Nursery and Greenhouse Crops | 10 | (D) | 186 | 13 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.