Total population (1990 census): 29370
County seat: Gillette
CropSELECT
Cereals, Pseudocereals, Oilseeds
Industrial, Fiber
Forages
Vegetables
Small Fruits
Tree Fruits and Nuts
Herb, Aromatic, Medicinal, and Bioactive
| Cereals | Farms | Acres | Yield | |
| Wheat for Grain, Total | 62 | 15316 | 442904 bu | |
| Spring Wheat | 21 | 2189 | 50492 bu | |
| Winter Wheat | 53 | 13127 | 392412 bu | |
| Barley | 20 | 1571 | 50064 bu | |
| Oats | 25 | 2257 | 74361 bu | |
| Triticale | 1 | D | D | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 271 | 70062 | 60668 tons, dry | |
| Alfalfa Hay | 229 | 51211 | 44811 tons, dry | |
| Small Grain Hay | 46 | 4288 | 5515 tons, dry | |
| Tame Hay | 44 | 7298 | 5950 tons, dry | |
| Wild Hay | 42 | 6275 | 3538 tons dry | |
| Grass Silage | 6 | 990 | 2560 tons, grn | |
| Fruits and Nuts | Farms | Acres | Yield | |
| Sweet Cherries | 1 | D | D | |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.