Total population (1990 census): 15905
County seat: Oskaloosa
CropSELECT
Cereals, Pseudocereals, Oilseeds
Industrial, Fiber
Forages
Vegetables
Small Fruits
Tree Fruits and Nuts
Herb, Aromatic, Medicinal, and Bioactive
| Cereals | Farms | Acres | Yield | |
| Maize=Corn | 217 | 31027 | 3014975 bu | |
| Sorghum for Grain or Seed | 94 | 6703 | 560119 bu | |
| Wheat for Grain, Total | 105 | 5424 | 219501 bu | |
| Oats | 46 | 1054 | 62398 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybean | 281 | 43678 | 1413132 bu | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 4 | 92 | X | |
| Total Hay* | 615 | 37037 | 58059 tons, dry | |
| Alfalfa Hay | 79 | 1517 | 4381 tons, dry | |
| Small Grain Hay | 20 | 329 | 382 tons, dry | |
| Tame Hay | 544 | 31094 | 48495 tons, dry | |
| Wild Hay | 117 | 3789 | 4586 tons dry | |
| Grass Silage | 7 | 308 | 647 tons, grn | |
| Corn for Silage | 23 | 1021 | 13215 tons, grn | |
| Sorghum for Silage | 8 | 149 | 2179 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Snap Bean | 3 | 1 | ||
| Cantaloupes | 4 | 1 | ||
| Cucumbers and Pickles | 3 | 1 | ||
| Pumpkins | 6 | 12 | ||
| Squash | 4 | 2 | ||
| Sweet Corn | 5 | 3 | ||
| Tomatoes | 7 | 3 | ||
| Watermelons | 4 | 1 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 12 | 91 | 4433 trees | |
| Cherries, Total | 4 | D | D | |
| Grapes | 6 | 5 | 2298 | |
| Peaches | 8 | 25 | D | |
| Strawberries | 6 | 17 | 49710 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 | 8 | 21060 | 36 | D |
| Florculture Crops | 4 | D | D | 31 |
| Bedding/Garden Plants | 4 | 6660 | 6 | 15 |
| Cut Christmas Trees Harvested | 4 | X | D | 33 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.