Total population (1990 census): 7914
County seat: Belle Fourche
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 | 60 | 5131 | 531758 bu | |
| Sorghum for Grain or Seed | 4 | 200 | 8500 bu | |
| Wheat for Grain, Total | 99 | 20755 | 527380 bu | |
| Other Spring Wheat | 67 | D | D | |
| Winter Wheat | 64 | 12097 | 336354 bu | |
| Barley | 8 | 481 | 23835 bu | |
| Oats | 57 | 2383 | 120405 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Dry Edible Beans | 9 | 316 | 5919 cwt | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 3 | 90 | X | |
| Total Hay* | 391 | 70272 | 122788 tons, dry | |
| Alfalfa Hay | 336 | 44836 | 89872 tons, dry | |
| Small Grain Hay | 94 | 3919 | 7067 tons, dry | |
| Tame Hay | 105 | 6461 | 9896 tons, dry | |
| Wild Hay | 101 | 13974 | 13184 tons dry | |
| Grass Silage | 13 | 1082 | 8310 tons, grn | |
| Corn for Silage | 30 | 2900 | 38594 tons, grn | |
| Sorghum for Silage | 6 | 204 | 1529 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Sweet Corn | 5 | 16 | ||
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.