Total population (1990 census): 123809
County seat: Sioux Falls
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 | 685 | 135807 | 14443504 bu | |
| Wheat for Grain, Total | 22 | 1202 | 44298 bu | |
| Other Spring Wheat | 21 | D | D | |
| Barley | 4 | 177 | 9226 bu | |
| Oats | 117 | 3564 | 247569 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Soybeans for Beans | 670 | 133548 | 4846299 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 611 | 30728 | 80429 tons, dry | |
| Alfalfa Hay | 457 | 20030 | 61982 tons, dry | |
| Small Grain Hay | 42 | 1161 | 2227 tons, dry | |
| Tame Hay | 127 | 3371 | 5443 tons, dry | |
| Wild Hay | 205 | 4665 | 7361 tons dry | |
| Grass Silage | 26 | 1501 | 10248 tons, grn | |
| Corn for Silage | 177 | 8102 | 92977 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Snap Bean | 3 | Z | ||
| Head Cabbage | 3 | Z | ||
| Cucumbers & Pickles | 3 | Z | ||
| Eggplant | 1 | D | ||
| Dry Onions | 3 | D | ||
| Sweet Peppers | 3 | D | ||
| Potatoes | 3 | D | D | |
| Pumpkins | 5 | 5 | ||
| Radishes | 1 | D | ||
| Squash | 4 | 4 | ||
| Sweet Corn | 6 | 41 | ||
| Tomatoes | 5 | 6 | ||
| Fruits | Farms | Acres | Yield | |
| Apples | 8 | 24 | 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 | 23 | D | 146 | 3784 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 7 | X | 28 | X |
| Florculture Crops | 6 | D | D | D |
| Bedding/Garden Plants | 5 | D | D | D |
| Potted Flowering Plants | 3 | D | D | D |
| Nursery Crops | 11 | D | 93 | 358 |
| Other Nursery and Greenhouse Crops | 5 | D | D | 39 |
*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.