Total population (1990 census): 72207
County seat: Idaho 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 | 210 | 78403 | 5193225 bu | |
| Spring Wheat | 186 | 49261 | 3747273 bu | |
| Winter Wheat | 56 | 29142 | 1445952 bu | |
| Barley | 247 | 58096 | 4594275 bu | |
| Mustard Seed | 4 | 420 | 419400 lbs | |
| Oats | 11 | 213 | 8442 bu | |
| Grain Legumes | Farms | Acres | Yield | |
| Dry Edible Peas | 5 | 264 | 470400 lbs | |
| Forages | Farms | Acres | Yield | |
| Field Seed and Grass Seed Crops | 3 | 164 | X | |
| Total Hay* | 377 | 33657 | 115049 tons, dry | |
| Alfalfa Hay | 349 | 30206 | 110202 tons, dry | |
| Small Grain Hay | 15 | 663 | 1194 tons, dry | |
| Tame Hay | 28 | 1528 | 2310 tons, dry | |
| Wild Hay | 16 | 1008 | 980 tons dry | |
| Grass Silage | 5 | 252 | 1090 tons, grn | |
| Corn for Silage | 7 | 451 | 8919 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Potatoes | 98 | 31777 | 8698639 cwt | |
| Sweet Corn | 3 | D | ||
| Fruits and Nuts | Farms | Acres | Yield | |
| Apples | 6 | 18 | 774 trees | |
| Raspberries | 5 | D | D | |
| Other Crops | Farms | Acres | Yield | |
| Herbs, Dried | 1 | D | D | |
| 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 | 20 | D | 393 | 907 |
| Nursery, Floriculture Vegetable and Flower Seed Crops | 16 | X | 388 | X |
| Floriculture Crops | 3 | D | D | D |
| Nursery Crops | 8 | D | 102 | 112 |
| Vegetable and Flower Seeds | 4 | D | 174 | 60 |
| Other Nursery and Greenhouse Crops | 3 | D | D | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.