Climate Risk Summary

Winthrop Town, MA Risk Profile

The primary drivers of climate-related financial risk in Winthrop Town, MA are Inland Flooding, Coastal Flooding, and Hurricane.

City-Wide Aggregation

These scores represent the population-weighted average across all residential blocks in Winthrop Town.

Primary Risks

Inland Flooding

$1,359,826

Expected Annual Loss for Winthrop Town

17.2Score

Relatively Low compared to US average

Winthrop Town
Minimal Estimated LossMax Estimated Loss

Coastal Flooding

$653,229

Expected Annual Loss for Winthrop Town

95.4Score

Relatively High compared to US average

Winthrop Town
Minimal Estimated LossMax Estimated Loss

Hurricane

$270,648

Expected Annual Loss for Winthrop Town

69.2Score

Relatively Low compared to US average

Winthrop Town
Minimal Estimated LossMax Estimated Loss

City Boundary

Legend
Very Low
Low
Moderate
High
Very High
Extreme

Financial Risk Inventory

MAJOR DRIVER
Inland Flooding
$1,359,826
Score: 17.2
MAJOR DRIVER
Coastal Flooding
$653,229
Score: 95.4
MAJOR DRIVER
Hurricane
$270,648
Score: 69.2
Earthquake
$224,568
Score: 53.0
Heat Wave
$217,155
Score: 52.7
Cold Wave
$199,717
Score: 44.3
Tornado
$55,361
Score: 23.2
Lightning
$52,655
Score: 47.1
Hail
$12,867
Score: 33.2
Strong Wind
$10,879
Score: 14.5
Ice Storm
$7,632
Score: 21.1
Winter Weather
$910
Score: 18.3
Wildfire
$38
Score: 8.1
Landslide
$13
Score: 43.8

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

🏠Low Investment

Coastal Flooding Mitigation

General property maintenance and insurance review recommended.

Risk Score: 95.4
🌀High Investment

Hurricane Mitigation

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

Risk Score: 69.2
🏠Low Investment

Earthquake Mitigation

General property maintenance and insurance review recommended.

Risk Score: 53.0
☀️Low Investment

Heat Wave Mitigation

Ensure attic insulation is R-49+ and consider a dual-fuel backup generator for AC.

Risk Score: 52.7

Sources and Methodology

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 Cities

BostonChelseaHullLynnNahant

Zip Codes in Winthrop Town

0212802152