Total population (1990 census): 25207
County seat: Brookings
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 | 466 | 96724 | 8740311 bu | |
| Wheat for Grain, Total | 210 | 17231 | 543869 bu | |
| Durum Wheat | 4 | 204 | 5520 bu | |
| Other Spring Wheat | 158 | 11940 | 378668 bu | |
| Winter Wheat | 75 | 5087 | 159681 bu | |
| Barley | 14 | 700 | 32345 bu | |
| Oats | 97 | 4678 | 255651 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybeans for Beans | 485 | 108590 | 3254482 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 479 | 35374 | 77216 tons, dry | |
| Alfalfa Hay | 350 | 19905 | 51635 tons, dry | |
| Small Grain Hay | 51 | 1964 | 2714 tons, dry | |
| Tame Hay | 123 | 4689 | 8911 tons, dry | |
| Wild Hay | 197 | 8146 | 12522 tons dry | |
| Grass Silage | 18 | 670 | 4303 tons, grn | |
| Corn for Silage | 157 | 8576 | 88508 tons, grn | |
| Sorghum for Silage | 5 | 203 | 1807 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Pumpkins | 3 | D | ||
| Sweet Corn | 4 | 62 | ||
| Tomatoes | 3 | 2 | ||
| Other Vegetables | 3 | 2 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 3 | D | D | |
| Other Crops | Farms | Acres | Yield | |
| Other | 4 | 235 | X | |
| 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 | 10 | 47100 | D | 781 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 4 | X | D | X |
| Florculture Crops | 5 | D | D | D |
| Bedding/Garden Plants | 4 | D | D | D |
| Nursery Crops | 4 | D | 7 | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.