Total population (1990 census): 128699
County seat: Rockville
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 | 8 | 379 | 37321 bu | |
| Oats | 1 | D | D | |
| Rye | 6 | 100 | 2993 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 178 | 7118 | 15322 tons, dry | |
| Alfalfa Hay | 51 | 971 | 2004 tons, dry | |
| Small Grain Hay | 7 | 77 | 118 tons, dry | |
| Tame Hay | 135 | 4007 | 7656 tons, dry | |
| Wild Hay | 22 | 458 | 563 tons dry | |
| Grass Silage | 24 | 1605 | 14940 tons, grn | |
| Corn for Silage | 50 | 5018 | 101692 tons, grn | |
| Vegetables | Farms | Acres | Yield | |
| Head Cabbage | 6 | 10 | ||
| Cantaloupes | 3 | D | ||
| Cucumbers and Pickles | 11 | 11 | ||
| Eggplant | 3 | Z | ||
| Herbs, Fresh Cut | 3 | D | ||
| Lettuce and Romaine | 3 | 1 | ||
| Hot Peppers | 3 | 1 | ||
| Sweet Peppers | 11 | 3 | ||
| Potatoes | 3 | D | D | |
| Pumpkins | 27 | 193 | ||
| Squash | 20 | 27 | ||
| Sweet Corn | 21 | 130 | ||
| Tomatoes | 18 | 26 | ||
| Mixed Vegetables | 4 | 37 | ||
| Fruits and Nuts | Farms | Acres | Yield | |
| Apples | 25 | 159 | 17030 trees | |
| Grapes | 8 | 8 | 5032 vines | |
| Peaches | 7 | D | D | |
| Pears | 5 | 1 | 22 trees | |
| Tame Blueberries | 14 | 11 | 13862 lbs | |
| Raspberries | 7 | 10 | 10327 lbs | |
| Strawberries | 17 | 64 | 427486 lbs | |
| Other Crops | Farms | Acres | Yield | |
| Maple Trees Tapped | 20 | 64 | 6910 | |
| Tobacco | 10 | 107 | 182200 lbs | |
| 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 | 86 | 930124 | 402 | 6949 |
| Nursery, Floriculture Vegetable and Flower Seed Crops | 23 | X | D | X |
| Floriculture Crops | 35 | 904734 | D | 6341 |
| Bedding and Garden Plants | 34 | 554278 | 4 | 4848 |
| Cut Flowers and Cut Florist Greens | 3 | D | D | 22 |
| Potted Flowering Plants | 15 | D | 3 | 1471 |
| Bulbs, Corms, Rhizomes, and Tubers | 1 | D | D | D |
| Cut Christmas Trees Harvested | 33 | X | 9 | 131 |
| Nursery Crops | 14 | 3250 | 126 | 396 |
| Sod Harvested | 1 | X | D | D |
| Greenhouse Vegetables | 6 | 22140 | X | D |
| Other Nursery and Greenhouse Crops | 38 | D | 246 | D |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.
Z=Less than half of the unit shown.