Total population (1990 census): 150979
County seat: Davenport
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 585 | 114405 | 15877875 bu | |
| Wheat for Grain, Total | 8 | 149 | 7029 bu | |
| Oats | 116 | 1613 | 135561 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 522 | 70605 | 3635063 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 303 | 7618 | 23455 tons, dry | |
| Alfalfa Hay | 279 | 6143 | 20683 tons, dry | |
| Small Grain Hay | 40 | 566 | 960 tons, dry | |
| Tame Hay | 27 | 248 | 600 tons, dry | |
| Wild Hay | 5 | 106 | D | |
| Grass Silage | 25 | 555 | D | |
| Corn for Silage | 60 | 1521 | 25221 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Asparagus | 3 | D | ||
| Pumpkins | 4 | D | ||
| Sweet Corn | 8 | 39 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 10 | 43 | 2781 trees | |
| Pears | 4 | 2 | 138 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 | 18 | 82874 | 799 | 2549 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 5 | X | 598 | X |
| Florculture Crops | 4 | D | D | D |
| Bedding/Garden Plants | 4 | D | D | D |
| Potted Flowering Plants | 3 | D | D | D |
| Cut Christmas Trees Harvested | 4 | X | 15 | D |
| Nursery Crops | 4 | D | D | 44 |
| Sod Harvested | 5 | X | 725 | 1778 |
| Other Nursery and Greenhouse Crops | 3 | D | D | 3 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.