Natural Disaster Risk in Twin Brooks
South Dakota
Risk Summary for Twin Brooks
Twin Brooks scores 4.6/10 (Moderate risk), near the U.S. average of 4.5. The leading hazard is Cold Wave.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Average risk — standard coverage usually sufficient
This area carries average natural disaster risk. A standard homeowners or renters policy should cover common events, but review the exclusions for floods and earthquakes, which are almost never included by default.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Twin Brooks, South Dakota
Twin Brooks, in Grant County, is a small unincorporated community situated in the northern tier of the continental United States. Its semi-arid continental climate brings harsh winters, hot summers, and significant seasonal variation, and in particular severe blizzards and spring flooding. These conditions collectively define the natural hazard environment that Twin Brooks residents and property owners must navigate.
Twin Brooks's overall natural disaster risk is rated 4.6/10 (Moderate) by FEMA's National Risk Index. Cold wave events are the primary hazard risk, driven by periodic invasions of Arctic air that drive wind chills to life-threatening levels and stress heating systems. Secondary hazards include ice storm and winter.
Within South Dakota, Twin Brooks's risk is, near the 4.9/10 state average. Nationally, it ranks near the U.S. national average of 4.5/10. FEMA's analysis of Grant County identifies cold wave as the foremost hazard, followed by ice storm and winter. These rankings reflect the relative frequency and severity of each hazard type in the local environment.
Twin Brooks's moderate risk profile means that while catastrophic events are less frequent, they do occur. Standard homeowners insurance typically covers many common hazards here, but confirming that cold wave exposure is adequately protected is a worthwhile step for property owners.
What this means for Twin Brooks: Cold Wave preparedness
- Dress in layers and limit exposure during extreme cold to prevent frostbite and hypothermia.
- Protect pipes, pets, and plants, and ensure heating systems are serviced before winter.
- Keep emergency heat and supplies ready in case of cold-related power outages.
Local Factors for Twin Brooks
These city-level factors differentiate Twin Brooks from other communities in Grant County and provide geographic context for its hazard exposure.
Population
186
RuralGeographic Zone
Inland
Reduced coastal hazard exposure
Climate Band
Cool Continental
Latitude 45.2°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Moderate — seasonal fire risk
Fire score: 6.0/10
Coordinates
45.2227° N, 96.8018° W
Grant County
Population and coordinates from SimpleMaps US Cities data. Hazard scores from FEMA National Risk Index. Geographic classification derived from coordinates.
Recent Climate Data for Twin Brooks
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
ZIP Codes in Twin Brooks
Other cities in South Dakota
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. City scores inherit county-level FEMA data. For informational purposes only.