Arborlook
Risk & Response
by Arborlook Insights

Lewis County, WA

Community risk profile | NRI Score: 90.0 Very High

85,154
Population
13
Departments
49
Stations
21
Census Tracts

Natural Hazard Loss Profile

Expected annual loss across the 18 natural hazards in FEMA's National Risk Index. Life safety is expressed in fatality-equivalents, combining expected deaths and injuries. Property loss counts building damage only, separate from agriculture.

Natural Hazard Life Safety
1.72
expected fatality-equivalents per year, natural hazards only
16th highest of 39
Life Safety per 100k
2.02
natural hazard fatality-equivalents per 100,000 residents
11th highest of 39
Natural Hazard Property Loss
$57.7M
expected building loss per year, natural hazards only
15th highest of 39
Property Loss per Resident
$678
natural hazard building loss per resident per year
13th highest of 39

These figures cover natural hazards only. Structure fire, EMS, and motor vehicle incidents are not included in the National Risk Index and are not counted here, so this is not an all-cause life safety measure. For Lewis County, the largest single contributor is Avalanche, 50% of the life-safety total.

Lewis County carries an expected 2 natural hazard fatality-equivalents and $57.7M in building loss per year. Rank chips compare the 39 Washington counties. Nationally, Lewis County ranks 347th of 3,222 U.S. counties for life-safety loss, 621st for life safety per 100k residents, 350th for property loss, and 432nd for property loss per resident. Computed from census tract data covering every resident, independent of fire department boundaries.

Add fire mortality, cause, and loss

Natural hazard exposure is one half of the picture. The other half is what your departments run on: fire deaths and injuries, cause of ignition, dollar loss per incident. That comes from NERIS incident reporting, and it grows as departments serving Lewis County enroll. Our Regional tier brings it together across your jurisdiction, with participating departments, alongside response time analytics, cross-department benchmarking, and coverage gap analysis.

Talk to us about Lewis County See what a department sees

What Drives the Loss

71%
29%
Property (buildings): $57.7M (71.0%)
Life safety: $23.6M (29.0%)
Agriculture: $46K (0.1%)

Total expected annual loss: $81,342,724 per year. Life safety is shown here in dollars, at FEMA's $13.7M value of statistical life, so the three shares sum to the total.

Hazards Ranked Two Ways

The hazard that threatens people is often not the hazard that destroys buildings. Both columns cover the same 18 hazards over the same year.

By life-safety loss ($/yr)

Avalanche
$11.7M
Earthquake
$10.0M
Heat Wave
$1.2M
Inland Flooding
$312K
Volcanic Activity
$150K
Lightning
$98K

By property loss ($/yr)

Inland Flooding
$36.4M
Earthquake
$20.5M
Wildfire
$255K
Landslide
$172K
Strong Wind
$143K
Volcanic Activity
$137K

Census Tract Risk Map

Shaded by quintile across the census tracts in Lewis County. Gray tracts have no modeled loss or no resident population. Per-resident figures on this map use the National Risk Index 2020 tract population.

Fire Service Profile

54%
38%
Combination: 54% (7)
Volunteer: 38% (5)
Unreported: 8% (1)
Residents per Station
1,738
census population per registered station
Stations per 100k
57.5
registered stations per 100,000 residents

Department composition covers the 13 departments registered in NERIS Public for Lewis County, WA. Departments that have not registered are not counted. Station coverage divides census population by registered stations; department service areas overlap, so their populations are not summed.

Department Rankings

Fire and EMS departments serving Lewis County. Click column headers to sort.

NRI Rating is from FEMA's National Risk Index, which measures community risk across 18 natural hazards using expected annual losses, social vulnerability, and community resilience. Life-Safety Loss uses FEMA's Value of Statistical Life ($13.7M per expected fatality) to estimate annual risk to human life.

Department boundaries and station counts are self-reported through NERIS Public and may not reflect current service areas. Population and Life-Safety Loss reflect each department's full jurisdiction. County-level risk metrics are computed from census tract data and are not affected by boundary accuracy. See full methodology.

Showing 13 departments
Department Est. Population Life-Safety Loss NRI Rating Stations
Pierce 23 Fire & Rescue 11,278 $11.1M Very High 5
Riverside Fire Authority 37,081 $9.6M Very High 8
Lewis City Fire District #6 31,476 $8.9M Very High 0
Lewis County Fire Protection District #14 15,849 $6.3M Very High 2
Lewis County Fire District 5 23,755 $5.5M Very High 6
Lewis County Fire Protection District 4 13,385 $4.8M Very High 2
Lewis County Fire District 8 14,245 $4.7M Very High 5
Lewis County Fire Protection District #1 13,712 $4.6M Very High 6
Lewis County Fire District #3 8,503 $3.2M Very High 3
Lewis County Fire District No. 10 7,346 $3.2M Very High 3
Lewis County Fire District # 9 8,289 $3.1M Very High 2
Chehalis Fire Department 6,899 $2.6M Very High 2
Cowlitz-Lewis Fire District #20 8,287 $2.4M Very High 5
No departments match your search.

Risk Snapshot

12.2%
Poverty Rate
21.4%
Age 65+
19.7%
Disability Rate
6.3%
Uninsured
50.0%
Pre-1980 Housing
14.7%
Mobile Homes
9.8%
Vacancy Rate
11.4%
Wood Heat
$76,288
Median HH Income

FEMA Disaster Declarations

13
Last 10 Years
22
Last 25 Years
Flood
Most Frequent

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