Total population (1990 census): 12083
County seat: Lewistown
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 | 330 | 189671 | 7084714 bu | |
| Spring Wheat | 220 | D | D | |
| Winter Wheat | 273 | 120343 | 4651054 bu | |
| Barley | 273 | 75936 | 3637154 bu | |
| Canola | 4 | 514 | 589140 lbs | |
| Oats | 57 | 3215 | 154810 bu | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 3 | 150 | X | |
| Total Hay* | 556 | 146401 | 229744 tons, dry | |
| Alfalfa Hay | 486 | 112591 | 178478 tons, dry | |
| Small Grain Hay | 148 | 11406 | 22546 tons, dry | |
| Tame Hay | 129 | 14097 | 16364 tons, dry | |
| Wild Hay | 104 | 6415 | 8185 tons dry | |
| Grass Silage | 7 | 1892 | 12513 tons, grn | |
| 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 | 5 | D | 10 | D |
| Nursery, Floriculture Vegetable and Flower Seed Crops | 3 | X | 6 | X |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.