Total population (1990 census): 10428
County seat: Petersburg
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 | 16 | 459 | 29401 bu | |
| Oats | 5 | 40 | 2430 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 290 | 13735 | 22694 tons, dry | |
| Alfalfa Hay | 41 | 820 | 2025 tons, dry | |
| Small Grain Hay | 14 | 242 | 367 tons, dry | |
| Tame Hay | 229 | 9852 | 16751 tons, dry | |
| Wild Hay | 40 | 1946 | 2421 tons dry | |
| Grass Silage | 21 | 875 | 3382 tons, grn | |
| Corn for Silage | 30 | 759 | 8659 tons, grn | |
| Sorghum for Silage | 3 | 19 | 193 tons, grn | |
| Fruits and Nuts | Farms | Acres | Yield | |
| Apples | 6 | 9 | 159 trees | |
| Grapes | 4 | 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 | 8 | 17172 | D | 182 |
| Floriculture Crops | 3 | 17172 | D | D |
| Bedding and Garden Plants | 3 | 17172 | D | D |
| Cut Christmas Trees Harvested | 5 | X | 22 | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.