Arborlook
Risk & Response
by Arborlook Insights

Napa County, CA

Community risk profile | NRI Score: 85.6 Very High

134,869
Population
12
Departments
39
Stations
40
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
1.38
expected fatality-equivalents per year, natural hazards only
32nd highest of 58
Life Safety per 100k
1.02
natural hazard fatality-equivalents per 100,000 residents
27th highest of 58
Natural Hazard Property Loss
$145.4M
expected building loss per year, natural hazards only
26th highest of 58
Property Loss per Resident
$1,078
natural hazard building loss per resident per year
9th highest of 58

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 Napa County, the largest single contributor is Earthquake, 88% of the life-safety total.

Napa County carries an expected 1 natural hazard fatality-equivalents and $145.4M in building loss per year. Rank chips compare the 58 California counties. Nationally, Napa County ranks 427th of 3,222 U.S. counties for life-safety loss, 1696th for life safety per 100k residents, 144th for property loss, and 96th 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 Napa 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 Napa County See what a department sees

What Drives the Loss

78%
10%
12%
Property (buildings): $145.4M (78.2%)
Life safety: $18.9M (10.2%)
Agriculture: $21.7M (11.7%)

Total expected annual loss: $186,047,696 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.

Agriculture is 12% of expected annual loss in Napa County, so total loss overstates property loss here. The property figure above counts building loss only.

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)

Earthquake
$16.7M
Heat Wave
$783K
Inland Flooding
$565K
Landslide
$529K
Wildfire
$167K
Lightning
$96K

By property loss ($/yr)

Inland Flooding
$88.8M
Earthquake
$50.1M
Wildfire
$4.7M
Coastal Flooding
$985K
Landslide
$580K
Tornado
$174K

Census Tract Risk Map

Shaded by quintile across the census tracts in Napa 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

8%
67%
8%
17%
Career: 8% (1)
Combination: 67% (8)
Volunteer: 8% (1)
Unreported: 17% (2)
Residents per Station
3,458
census population per registered station
Stations per 100k
28.9
registered stations per 100,000 residents

Department composition covers the 12 departments registered in NERIS Public for Napa County, CA. 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 Napa 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 12 departments
Department Est. Population Life-Safety Loss NRI Rating Stations
Napa County Fire Department 121,582 $18.4M Very High 1
Bennett Valley Fire Protection District 124,801 $18.2M Very High 1
City Of Napa Fire Department 69,347 $11.8M Very High 10
Vallejo Fire Department 115,187 $11.3M Relatively High 7
South Lake Couny Fire Protection District 15,605 $6.9M Very High 4
California Medical Facility / CSP Solano Fire Department 128,157 $5.7M Relatively High 1
Northern Sonoma County Fire Protection District 28,340 $5.6M Very High 4
Schell-Vista Fire Protection District 17,026 $3.3M Very High 2
St. Helena Fire Department 4,691 $1.3M Very High 1
American Canyon Fire Protection District 19,569 $1.1M Relatively High 4
Calistoga Fire Department 4,350 $816.0K Very High 1
Capay Valley Fire Protection District 6,132 $636.7K Very High 3
No departments match your search.

Risk Snapshot

8.5%
Poverty Rate
21.1%
Age 65+
12.8%
Disability Rate
5.7%
Uninsured
57.1%
Pre-1980 Housing
6.2%
Mobile Homes
10.8%
Vacancy Rate
1.7%
Wood Heat
$114,357
Median HH Income

FEMA Disaster Declarations

19
Last 10 Years
27
Last 25 Years
Fire
Most Frequent

Response-level intelligence for your region

Our Regional tier gives county fire authorities and state fire marshals rollup dashboards across all departments in your jurisdiction: response time analytics, cross-department benchmarking, and coverage gap analysis.

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