Total population (1990 census): 23700
County seat: Mandan
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 | 66 | 9111 | 645619 bu | |
| Sorghum for Grain or Seed | 3 | 130 | 2820 bu | |
| Wheat for Grain, Total | 450 | 186398 | 3812984 bu | |
| Durum Wheat | 29 | D | D | |
| Other Spring Wheat | 436 | 180372 | 3656594 bu | |
| Barley | 223 | 30554 | 996834 bu | |
| Canola | 3 | D | D | |
| Oats | 241 | 23799 | 872804 bu | |
| Sunflower Seed | 30 | 8311 | 7581482 lbs | |
| Grain Legumes | Farms | Acres | Yield | |
| Dry Edible Beans | 3 | 144 | 1270 cwt | |
| Dry Edible Peas | 4 | 182 | 460550 lbs | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 600 | 134045 | 185090 tons, dry | |
| Alfalfa Hay | 529 | 62422 | 99232 tons, dry | |
| Small Grain Hay | 295 | 30464 | 39415 tons, dry | |
| Tame Hay | 277 | 21847 | 27388 tons, dry | |
| Wild Hay | 251 | 16156 | 16235 tons dry | |
| Grass Silage | 30 | 3156 | 8463 tons, grn | |
| Corn for Silage | 147 | 16226 | 93372 tons, grn | |
| Sorghum for Silage | 10 | 679 | 1935 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Sweet Corn | 3 | 5 | ||
| 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 | 3 | D |
| Florculture Crops | 3 | D | D | D |
| Bedding/Garden Plants | 3 | D | D | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.