Total population (1990 census): 77691
County seat: Great Falls
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 | 235 | 152705 | 6272498 bu | |
| Spring Wheat | 133 | 55088 | 1811475 bu | |
| Durum Wheat | 14 | 3969 | 124436 bu | |
| Winter Wheat | 187 | 93648 | 4336587 bu | |
| Barley | 177 | 56278 | 3115102 bu | |
| Canola | 11 | 2046 | 2322500 lbs | |
| Oats | 29 | 994 | 52138 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Dry Edible Peas | 3 | 270 | 703240 lbs | |
| Lentils | 3 | 380 | 256080 lbs | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 515 | 81695 | 141091 tons, dry | |
| Alfalfa Hay | 449 | 63217 | 112501 tons, dry | |
| Small Grain Hay | 84 | 5043 | 8983 tons, dry | |
| Tame Hay | 92 | 7832 | 11154 tons, dry | |
| Wild Hay | 72 | 4515 | 5755 tons dry | |
| Grass Silage | 10 | 1088 | 8093 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Green Peas | 5 | 2 | ||
| Potatoes | 3 | 7 | D | |
| Sweet Corn | 6 | 9 | ||
| 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 | 12 | 188505 | D | 1884 |
| Floriculture Crops | 8 | 182840 | D | 1189 |
| Bedding/Garden Plants | 8 | 160840 | D | 1046 |
| Potted Flowering Plants | 3 | D | D | D |
| Nursery Crops | 3 | D | D | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.