Total population (1990 census): 60391
County seat: Castle Rock
Crop Statistics (1997 US Census of Agriculture)
| Cereals | Farms | Acres | Yield | |
| Wheat | 17 | 3058 | 66325 bu | |
| Spring Wheat | 3 | (D) | (D) | |
| Winter Wheat | 17 | (D) | (D) | |
| Oats | 6 | 210 | 8314 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 192 | 12236 | 16279 tons, dry | |
| Alfalfa Hay | 87 | 3948 | 6852 tons, dry | |
| Small Grain Hay | 20 | 506 | 814 tons, dry | |
| Tame Hay | 68 | 4118 | 4940 tons, dry | |
| Wild Hay | 60 | 3547 | 3573 tons dry | |
| Grass Silage | 4 | 117 | 301 tons, grn | |
| Fruits | Farms | Acres | Yield | |
| Apples | 3 | (D) | (D) | |
| Grapes | 5 | 7 | 1937 vines | |
| 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 | 28 | 585648 | 501 | 8871 |
| Nursery, Floriculture, Vegetable and Flower Seed Crops | 15 | (X) | 120 | (X) |
| Florculture Crops | 8 | 576250 | 13 | 3159 |
| Bedding/Garden Plants | 6 | 249770 | 6 | 1747 |
| Cut Flowers and Cut Florist Greens | 3 | (D) | (D) | (D) |
| Cut Christmas Trees Harvested | 5 | (X) | 50 | (D) |
| Nursery Crops | 7 | (D) | 253 | 5395 |
| Other Nursery and Greenhouse Crops | 7 | (D) | 180 | 49 |
*Alfalfa, grass silage, green chops etc.
D=Withheld to avoid disclosing data for individual farms.
X=Not applicable.