County Data
Charleston County, South Carolina
Self-reliance and preparedness data for Charleston County
Relatively High
Hazard Risk (25.0/100)
Good
Solar (4.8 kWh/m²/day)
Natural Hazard Risks in Charleston County
| Hazard | Risk Rating | Score |
|---|---|---|
| Lightning | Relatively High | 28.5 |
| Wildfire | Relatively Moderate | 26.9 |
| Coastal Flooding | Relatively Moderate | 26.6 |
| Earthquake | Relatively High | 23.7 |
| Winter Weather | Relatively Moderate | 18.2 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 46°F |
Water & Energy
| Annual Precipitation | 2.7″ |
| Solar Potential | 4.8 kWh/m²/day |
| Wind Speed | 4.8 m/s |
| Soil Type | Sandy Loam |
Local Species
62
Edible species
27
Medicinal species
54
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Charleston County, South Carolina?
- Charleston County has an overall hazard rating of Relatively High based on FEMA National Risk Index data. The top threats are Lightning, Wildfire, Coastal Flooding. Each hazard is scored 0–100 by likelihood and expected impact.
- Is Charleston County good for solar power?
- Charleston 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 Charleston County?
- Our database identifies 62 edible plant species in Charleston 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 Charleston County?
- Charleston County has an autonomy score of 54. 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.