Newmarket sits on the Lamprey River near Great Bay in southeastern New Hampshire, with tidal flooding exposure and proximity to both the coast and the Seabrook Nuclear Power Station approximately 15 miles to the southeast. The town is within the broader awareness zone for Seabrook and has coastal storm exposure amplified by Great Bay tidal dynamics. Winter nor'easters are a consistent annual hazard.
// Preparedness Recommendations
- Identify nearest fallout shelter locations.
- Keep KI tablets if within exposure radius.
- Plan for immediate indoor sheltering.
- Monitor official emergency broadcasts.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
- Potassium Iodide (KI) Tablets
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// Risk Intelligence
| Threat Score | 5 / 10 Moderate |
| Primary Hazard | Coastal / Nuclear Proximity |
| FEMA Flood Zone | High |
| County FEMA Declarations | 7 |
| Last Major Event | 2017 Nor'easter |
// Emergency Information
| Emergency Phone | 603-659-3617 |
| Evacuation Routes | I-95 NH-101 US-1 NH-107 |
| Elevation | 36 ft above sea level |
// County Risk Profile
Rockingham County NH
New Hampshire · Hurricane / Nuclear Proximity
View full county emergency preparedness profile →
7/10
High Risk
// Other Cities in Rockingham County NH
Hampton NH
Nuclear EPZ / Coastal Storm Surge
8/10
High
Seabrook NH
Nuclear Power Plant / Storm Surge
9/10
Critical
Plaistow NH
Nuclear Proximity / Winter Storm
5/10
Moderate
Exeter NH
Nuclear Proximity / Coastal Storm
6/10
Moderate
Salem NH
Noreaster / Ice Storm / Flooding
4/10
Low
Derry NH
Noreaster / Ice Storm / Flooding
4/10
Low