Arborlook
Risk & Response
by Arborlook Insights

Williamson County, TX

Community risk profile | NRI Score: 28.0 Relatively Low

672,688
Population
17
Departments
176
Stations
135
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
3.25
expected fatality-equivalents per year, natural hazards only
21st highest of 254
Life Safety per 100k
0.48
natural hazard fatality-equivalents per 100,000 residents
245th highest of 254
Natural Hazard Property Loss
$90.5M
expected building loss per year, natural hazards only
16th highest of 254
Property Loss per Resident
$135
natural hazard building loss per resident per year
247th highest of 254

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 Williamson County, the largest single contributor is Cold Wave, 47% of the life-safety total.

Williamson County carries an expected 3 natural hazard fatality-equivalents and $90.5M in building loss per year. Rank chips compare the 254 Texas counties. Nationally, Williamson County ranks 159th of 3,222 U.S. counties for life-safety loss, 2580th for life safety per 100k residents, 243rd for property loss, and 3155th 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 Williamson 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 Williamson County See what a department sees

What Drives the Loss

66%
33%
Property (buildings): $90.5M (66.3%)
Life safety: $44.6M (32.6%)
Agriculture: $1.5M (1.1%)

Total expected annual loss: $136,605,380 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)

Cold Wave
$21.1M
Tornado
$10.2M
Heat Wave
$5.3M
Inland Flooding
$3.3M
Lightning
$1.7M
Winter Weather
$1.2M

By property loss ($/yr)

Inland Flooding
$67.7M
Hail
$13.2M
Tornado
$6.3M
Wildfire
$1.4M
Hurricane
$677K
Strong Wind
$538K

Census Tract Risk Map

Shaded by quintile across the census tracts in Williamson 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

53%
24%
24%
Career: 53% (9)
Combination: 24% (4)
Volunteer: 24% (4)
Residents per Station
3,822
census population per registered station
Stations per 100k
26.2
registered stations per 100,000 residents

Department composition covers the 17 departments registered in NERIS Public for Williamson County, TX. 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 Williamson 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 17 departments
Department Est. Population Life-Safety Loss NRI Rating Stations
Austin Fire Department 944,659 $105.1M Relatively Low 107
Travis County Emergency Services District No. 2 147,493 $13.4M Relatively Low 8
Round Rock Fire Department 149,740 $9.8M Relatively Low 11
Georgetown Fire Department 141,679 $9.8M Relatively Low 7
Cedar Park Fire Department 97,794 $7.4M Relatively Low 5
Williamson County Esd#7 31,616 $3.5M Relatively Moderate 4
Bartlett Volunteer Fire Department 31,734 $3.3M Relatively High 1
Hutto Fire/Rescue 54,880 $3.3M Relatively Low 4
Williamson County Emergency Services District #4 45,831 $2.9M Relatively Low 3
Weir Volunteer Fire Department 27,654 $2.2M Relatively Moderate 0
City Of Taylor Fire Department 22,342 $1.9M Relatively Low 2
Sam Bass Fire Department 25,548 $1.8M Relatively Low 6
Thorndale Volunteer Fire Department 7,192 $1.4M Relatively High 1
Williamson County Emergency Services District Number 5 19,606 $1.2M Relatively Moderate 2
Leander Fire Department 18,017 $955.5K Relatively Moderate 11
Jollyville Volunteer Fire Department 9,719 $794.7K Relatively Low 2
Granger Volunteer Fire Department 3,477 $413.8K Relatively High 2
No departments match your search.

Risk Snapshot

6.4%
Poverty Rate
12.9%
Age 65+
10.6%
Disability Rate
9.8%
Uninsured
9.4%
Pre-1980 Housing
1.9%
Mobile Homes
3.9%
Vacancy Rate
0.1%
Wood Heat
$121,196
Median HH Income

FEMA Disaster Declarations

6
Last 10 Years
20
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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