Total population (1990 census): 2498016
County seat: San Diego
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 | 3 | 3142 | 61622 bu | |
| Forages | Farms | Acres | Yield | |
| Total Hay* | 73 | 4869 | 6540 tons, dry | |
| Alfalfa Hay | 15 | 144 | 579 tons, dry | |
| Small Grain Hay | 55 | 4294 | 5362 tons, dry | |
| Tame Hay | 5 | 294 | 479 tons, dry | |
| Wild Hay | 8 | 137 | 120 tons dry | |
| Vegetables | Farms | Acres | Yield | |
| Artichokes | 3 | 3 | ||
| Snap Bean | 33 | 142 | ||
| Beets | 18 | 28 | ||
| Broccoli | 11 | 64 | ||
| Head Cabbage | 10 | D | ||
| Cantaloupes | 13 | 106 | ||
| Carrots | 11 | 39 | ||
| Cauliflower | 9 | 6 | ||
| Chinese Peas | 9 | 5 | ||
| Cucumbers & Pickles | 39 | 1349 | ||
| Eggplant | 10 | 22 | ||
| Garlic | 9 | 9 | ||
| Herbs, Fresh Cut | 28 | 499 | ||
| Kale | 4 | 3 | ||
| Lettuce and Romaine | 32 | 152 | ||
| Mustard Greens | 4 | D | ||
| Dry Onions | 4 | 5 | ||
| Green Onions | 7 | D | ||
| Hot Peppers | 6 | 22 | ||
| Sweet Peppers | 20 | 261 | ||
| Potatoes | 3 | 7 | D | |
| Pumpkins | 10 | 30 | ||
| Radishes | 6 | 5 | ||
| Squash | 39 | 250 | ||
| Sweet Corn | 29 | 496 | ||
| Tomatoes | 68 | 2765 | ||
| Turnips | 3 | 1 | ||
| Mixed Vegetables | 8 | 26 | ||
| Watermelons | 20 | 107 | ||
| Other Vegetables | 16 | 117 | ||
| Fruits and Nuts | Farms | Acres | Yield | |
| Apples | 161 | 687 | 89066 trees | |
| Apricots | 380 | 1677 | 154055 trees | |
| Avocados | 2757 | 31660 | 2736310 trees | |
| Cherries, Total | 9 | 2 | 158 trees | |
| Sweet Cherries | 7 | 2 | 150 trees | |
| Tart Cherries | 3 | Z | 8 trees | |
| Dates | 4 | D | D | |
| Figs | 37 | 49 | 3215 trees | |
| Grapes | 69 | 180 | 87593 vines | |
| Guavas | 14 | 39 | 4750 trees | |
| Kiwifruit | 11 | 6 | 808 trees | |
| Mangoes | 1 | D | D | |
| Nectarines | 23 | D | D | |
| Olives | 14 | 8 | 491 trees | |
| Peaches | 62 | 58 | 6104 trees | |
| Pears | 55 | 102 | 10532 trees | |
| Persimmons | 219 | 634 | 72681 trees | |
| Plums and Prunes | 56 | 22 | 2085 trees | |
| Pomegranates | 38 | 22 | 2319 trees | |
| Other Non-Citrus Fruits | 80 | 146 | 13468 trees | |
| Grapefruit | 376 | 2527 | 287338 trees | |
| Kumquats | 22 | 57 | D | |
| Lemons | 513 | 4290 | 417614 trees | |
| Limes | 426 | 747 | 75844 trees | |
| Oranges | 1045 | 9974 | 1069500 trees | |
| Tangelos | 160 | 368 | 42017 trees | |
| Other Tangerines | 123 | 184 | 18298 trees | |
| Other Citrus Fruits | 80 | D | 18221 trees | |
| Almonds | 16 | D | D | |
| Macadamia Nuts | 195 | 235 | 16189 husked, unshelled | |
| Pecans | 15 | 21 | 498 in shell | |
| Pistachios | 6 | 7 | 397 in shell | |
| English Walnuts | 18 | 37 | 550 in shell | |
| Other Nuts | 4 | 1 | D | |
| Blackberries | 12 | 5 | 13310 lbs | |
| Boysenberries | 11 | 6 | 25490 lbs | |
| Raspberries | 11 | 55 | D | |
| Strawberries | 42 | 401 | 15299464 lbs | |
| Other Crops | Farms | Acres | Yield | |
| Herbs, Total | 30 | 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 | 920 | 35734139 | 7689 | 347237 |
| Nursery, Floriculture Vegetable and Flower Seed Crops | 673 | X | 7157 | X |
| Floriculture Crops | 649 | 28583314 | 4204 | 240542 |
| Bedding and Garden Plants | 68 | 5145600 | 621 | 96651 |
| Cut Flowers and Cut Florist Greens | 377 | 9943571 | 3063 | 52428 |
| Foliage Plants | 160 | 7820632 | 380 | 57593 |
| Potted Flowering Plants | 97 | 5673511 | 141 | 33870 |
| Bulbs, Corms, Rhizomes, and Tubers | 11 | D | D | 870 |
| Cut Christmas Trees Harvested | 31 | X | 196 | 734 |
| Mushrooms | 9 | 380500 | X | 7919 |
| Nursery Crops | 190 | 3321978 | 2152 | 72306 |
| Sod Harvested | 4 | X | 734 | D |
| Vegetable and Flower Seeds | 9 | D | D | D |
| Greenhouse Vegetables | 27 | 3198040 | X | 16170 |
| Other Nursery and Greenhouse Crops | 58 | 164048 | 229 | 927 |
*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.