Total population (1996 census): 69,330
County seat: Chillicothe
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 346 | 54958 | 7341449 bu | |
| Wheat for Grain, Total | 250 | 19614 | 1041633 bu | |
| Barley | 4 | 135 | 10330 bu | |
| Oats | 28 | 344 | 23756 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 314 | 52465 | 2480648 bu | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 3 | 75 | X | |
| Red Clover Seed | 3 | 75 | 6150 lbs | |
| Total Hay* | 459 | 19158 | 46940 tons, dry | |
| Alfalfa Hay | 213 | 6699 | 20627 tons, dry | |
| Small Grain Hay | 41 | 800 | 1439 tons, dry | |
| Tame Hay | 257 | 10241 | 22139 tons, dry | |
| Wild Hay | 56 | 1056 | 1729 tons dry | |
| Grass Silage | 9 | 362 | 3016 tons, grn | |
| Corn for Silage | 45 | 1459 | 25846 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Pumpkins | 6 | 19 | ||
| Sweet Corn | 8 | 26 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 8 | D | D | |
| Grapes | 7 | 1 | 335 vines | |
| Nectarines | 3 | D | 160 trees | |
| Peaches | 5 | D | D | |
| Pears | 3 | D | 80 trees | |
| Plums and Prunes | 3 | Z | 65 trees | |
| Strawberries | 3 | D | 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 | 12 | D | 53 | 431 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 3 | X | D | X |
| Florculture Crops | 6 | D | 26 | 184 |
| Bedding/Garden Plants | 5 | D | D | D |
| Cut Christmas Trees Harvested | 5 | X | 11 | 213 |
| Herb, Spice, Medicinal, Bioactive... | Farms | Acres | Yield | |
| Tobacco | 7 | 24 | 24696 lbs | |
*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.