Climate Risk Summary

Zip Code 23507, Risk Profile

The primary drivers of climate-related financial risk in Norfolk, VA (23507) are Inland Flooding, Hurricane, and Coastal Flooding.

Understanding the Dollars

Expected Annual Loss (EAL) is a statistical average of property damage for this entire zip code over a standard year across all properties.

  • / It represents the "average cost" rather than a guaranteed yearly bill.
  • / It can be used to compare the relative risk from different hazards and across different neighborhoods.

Primary Risks

Inland Flooding

$658,319

Expected Annual Loss for Zip Code 23507

14.6Score

Relatively Low compared to US average

23507
Minimal Estimated LossMax Estimated Loss

Hurricane

$576,215

Expected Annual Loss for Zip Code 23507

81.0Score

Relatively High compared to US average

23507
Minimal Estimated LossMax Estimated Loss

Coastal Flooding

$138,839

Expected Annual Loss for Zip Code 23507

87.8Score

Relatively High compared to US average

23507
Minimal Estimated LossMax Estimated Loss

Zip Code Risk Map

Legend
Very Low
Low
Moderate
High
Very High
Extreme

Financial Risk Inventory

MAJOR DRIVER
Inland Flooding
$658,319
Score: 14.6
MAJOR DRIVER
Hurricane
$576,215
Score: 81.0
MAJOR DRIVER
Coastal Flooding
$138,839
Score: 87.8
Tornado
$106,453
Score: 39.4
Heat Wave
$71,613
Score: 34.5
Cold Wave
$57,845
Score: 31.7
Earthquake
$37,928
Score: 32.1
Strong Wind
$34,558
Score: 39.6
Lightning
$28,880
Score: 44.7
Hail
$22,199
Score: 48.4
Ice Storm
$11,221
Score: 36.8
Winter Weather
$3,691
Score: 36.0
Wildfire
$21
Score: 17.6
Landslide
$0
Score: 18.9

Recommended Mitigation Strategies

Recommended investments to protect your property value and reduce insurance liability based on your local risk profile.

💧Medium Investment

Inland Flooding Mitigation

Install a smart sump pump with battery backup and extend downspouts 10ft from foundation.

Risk Score: 14.6
🌀High Investment

Hurricane Mitigation

Install permanent hurricane shutters or upgrade to impact-resistant windows.

Risk Score: 81.0
🏠Low Investment

Coastal Flooding Mitigation

General property maintenance and insurance review recommended.

Risk Score: 87.8

Methodology and Sources

Spatial Aggregation

Our "Atlas" risk scores are derived using a population-weighted spatial join. Because US Zip Codes and Census Tracts do not share perfectly aligned boundaries, a simple geographic average would be misleading. We utilize US Census Block Group population statistics to identify where residents actually live within a Zip Code. We then intersect these points with FEMA National Risk Index (NRI) hazard data to calculate a weighted exposure score.

Financial Projections (EAL)

Expected Annual Loss (EAL) estimates the average economic impact of natural hazards in dollars per year. This calculation incorporates three components: Exposure (the value of structures and agriculture), Annualized Frequency (historical probability), and Historic Loss Ratio (vulnerability of the area).

Primary Data Sources

  • FEMA National Risk IndexHazard frequency and loss data (v1.20.0)
  • U.S. Census BureauTIGER/Line 2025 Shapefiles & Decennial Population

Nearby Locations

Zip Code 23510Zip Code 23517Zip Code 23508Zip Code 23707Zip Code 23708Zip Code 23504