County Data
Orange County, California
Self-reliance and preparedness data for Orange County
Relatively High
Hazard Risk (39.1/100)
10b
USDA Zone
Good
Solar (5.4 kWh/m²/day)
Natural Hazard Risks in Orange County
| Hazard | Risk Rating | Score |
|---|---|---|
| Earthquake | Relatively High | 39.0 |
| Wildfire | Relatively High | 37.4 |
| Riverine Flooding | Relatively Moderate | 17.9 |
| Tornado | Relatively Low | 16.0 |
| Tsunami | Relatively Low | 14.7 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Wildfire Risk in Orange County
FEMA National Risk Index37.4/100 — Meaningful, seasonal. Ranked 44 of 562 US counties where wildfire is a leading hazard.
What that means for Orange County households
- ●Clear leaf litter from gutters and roof valleys before dry season
- ●Know your evacuation route and where local shelters open
- ●Stock N95 masks — smoke from distant fires is the more likely exposure
- ●Keep a two-week supply buffer for the periods when roads close
Full wildfire preparedness guide · See how California compares
Climate Profile
Temperature & Growing Season
| January Avg | 56°F |
| July Avg | 69°F |
| USDA Zone | 10b |
Water & Energy
| Annual Precipitation | 16.5″ |
| Solar Potential | 5.4 kWh/m²/day |
| Wind Speed | 2.1 m/s |
| Soil Type | Loam |
Local Species
54
Edible species
23
Medicinal species
53
Autonomy Score
Get Your Orange County Guide
Enter any zip code in Orange County for a full location-specific guide with planting calendars, foraging data, water strategy, and personalized action plans.
Full guide from $14.99 — printable, offline-ready
Frequently Asked Questions
- What are the biggest natural hazards in Orange County, California?
- Orange County has an overall hazard rating of Relatively High based on FEMA National Risk Index data. The top threats are Earthquake, Wildfire, Riverine Flooding. Each hazard is scored 0–100 by likelihood and expected impact.
- Is Orange County good for solar power?
- Orange County has a good solar rating. Solar potential is based on average daily irradiance (kWh/m²/day), which determines how much energy rooftop or ground-mounted panels can produce year-round.
- How many edible plants grow in Orange County?
- Our database identifies 54 edible plant species in Orange County based on regional flora data, USDA hardiness zone, and iNaturalist observations. The full field guide includes identification notes, preparation methods, and seasonal availability.
- What is the autonomy score for Orange County?
- Orange County has an autonomy score of 53. This composite score measures local self-reliance potential across water access, food production capacity, energy resources, and supply chain resilience. Higher scores indicate greater potential for self-sufficiency.