Total population (1990 census): 110765
County seat: Napa
CropSELECT
Cereals, Pseudocereals, Oilseeds
Industrial, Fiber
Forages
Vegetables
Small Fruits
Tree Fruits and Nuts
Herb, Aromatic, Medicinal, and Bioactive
| Forages | Farms | Acres | Yield | |
| Total Hay* | 37 | 2616 | 6610 tons, dry | |
| Alfalfa Hay | 3 | D | D | |
| Small Grain Hay | 22 | 964 | 1953 tons, dry | |
| Tame Hay | 4 | D | D | |
| Wild Hay | 14 | 723 | 1270 tons dry | |
| Grass Silage | 3 | D | D | |
| Vegetables | Farms | Acres | Yield | |
| Snap Bean | 6 | 3 | ||
| Herbs, Fresh Cut | 3 | Z | ||
| Lettuce and Romaine | 3 | Z | ||
| Sweet Peppers | 6 | 1 | ||
| Pumpkins | 5 | 5 | ||
| Squash | 6 | 3 | ||
| Sweet Corn | 11 | 4 | ||
| Tomatoes | 18 | 57 | ||
| Mixed Vegetables | 7 | 7 | ||
| Fruits and Nuts | Farms | Acres | Yield | |
| Apples | 26 | 53 | 7650 trees | |
| Cherries, Total | 5 | 6 | 532 trees | |
| Sweet Cherries | 5 | 6 | 532 trees | |
| Figs | 13 | D | D | |
| Grapes | 1052 | 47404 | 30483593 vines | |
| Nectarines | 7 | 11 | D | |
| Olives | 15 | 68 | 3598 trees | |
| Peaches | 15 | 10 | 868 trees | |
| Pears | 9 | 4 | 417 trees | |
| Persimmons | 5 | 1 | 35 trees | |
| Plums and Prunes | 14 | 37 | 3588 trees | |
| Oranges | 3 | 1 | D | |
| Almonds | 4 | 1 | 72 | |
| English Walnuts | 41 | 283 | 7712 in shell | |
| Strawberries | 4 | 15 | 211949 lbs | |
| Other Crops | Farms | Acres | Yield | |
| Herbs, Total | 4 | D | X | |
| 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 | 54 | 154640 | 165 | 2501 |
| Nursery, Floriculture Vegetable and Flower Seed Crops | 36 | X | 147 | X |
| Floriculture Crops | 24 | X | 79 | 1426 |
| Bedding and Garden Plants | 7 | D | D | D |
| Cut Flowers and Cut Florist Greens | 15 | D | 72 | 263 |
| Potted Flowering Plants | 4 | D | D | D |
| Cut Christmas Trees Harvested | 15 | X | 64 | 221 |
| Nursery Crops | 10 | D | 14 | 833 |
| Other Nursery and Greenhouse Crops | 7 | D | 7 | 13 |
*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.