Total population (1990 census): 19612
County seat: Washington
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 731 | 115938 | 15924901 bu | |
| Wheat for Grain, Total | 33 | 973 | 44799 bu | |
| Oats | 150 | 2492 | 176073 bu | |
| Popcorn | 4 | 7 | 10600 lbs, shelled | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 678 | 101882 | 4928949 bu | |
| Dry Edible Beans | 8 | 245 | 4667 cwt | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 438 | 13534 | 38502 tons, dry | |
| Alfalfa Hay | 361 | 9929 | 32075 tons, dry | |
| Small Grain Hay | 26 | 334 | 454 tons, dry | |
| Tame Hay | 98 | 2402 | 4055 tons, dry | |
| Wild Hay | 8 | 153 | 289 tons dry | |
| Grass Silage | 32 | 716 | 4878 tons, grn | |
| Corn for Silage | 74 | 1307 | 20954 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Sweet Corn | 8 | 11 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 9 | 14 | 1394 trees | |
| Grapes | 3 | Z | 132 vines | |
| Peaches | 4 | 1 | 20 trees | |
| Other Fruits and Nuts | 3 | D | D | |
| Strawberries | 3 | 1 | 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 | 7 | D | 41 | 192 |
| Other Nursery and Greenhouse Crops | 3 | D | 5 | 2 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
Z=Less than half of the unit shown.