How many traffic fatalities occurred in Williamson County, Texas?

Williamson County recorded 370 total traffic fatalities across 339 reported crashes over the data period (2016-2023). The most recent year saw 43 fatalities. The county averages approximately 41.1 fatalities per year.

What is the leading cause of road fatalities in Williamson County?

Despite a comparatively active crash history (339 recorded crashes), individual cause-code breakdowns are not published for Williamson County in the current FARS release. Statewide data for Texas may provide additional context.

Is the trend of road fatalities in Williamson County increasing or decreasing?

The trend in Williamson County is increasing. This indicates that traffic fatalities have risen over the data period, warranting attention to road safety initiatives.

What is the fatality rate per capita in Williamson County?

Williamson County has a fatality rate of 6.2 per 100,000 residents, which puts it among the safest one in ten U.S. counties by that per-capita measure among the 3,137 U.S. counties in this dataset.

How does Williamson County compare to the rest of Texas?

Williamson County's per-capita rate of 6.2 per 100,000 residents is below the Texas county average of 27.3. Visit the Texas state page for the full county-by-county breakdown.

Where does the road fatality data for Williamson County come from?

All road fatality data comes from the NHTSA Fatality Analysis Reporting System (FARS), a census of fatal motor vehicle crashes on public roads in the United States. FARS data covers the period 2016-2023 and includes all crashes resulting in at least one fatality within 30 days.

COUNTY FATALITY DATA

Williamson County, Texas

Road fatality data for Williamson County (TX). Data period: 2016-2023.

Compiled by PlainRoadSafety · August 9, 2026

370
Total Fatalities (2016-2023): 43
Latest Year Deaths: 6.2
Per 100k Residents: Increasing
Trend

The verdict

According to the National Highway Traffic Safety Administration Fatality Analysis Reporting System, Williamson County ranks #2,124 of 2,328 U.S. counties by road-fatality rate per 100,000 residents (highest first) and #154 of 160 rated counties in TX. Williamson County's fatality rate of 6.2 per 100,000 residents puts it among the safest one in ten U.S. counties by that per-capita measure.

#2,124 of 2,328
national by fatality rate: #154 of 160
in TX by rate: 91%
of rated U.S. counties are deadlier per capita: Increasing
fatality trend

NHTSA county milepost

Milepost WILLIAMSON-4 · Williamson 6.2/100k · #2,124 of 2,328

Williamson County · 6.2/100k · increasing · cause n/a

FARS 6.2/100k
NHTSA #2,124 of 2,328
MILE 370 book
POST Increasing
BAND near Erie
VOL -77.3% vs TX

Stamps derive from this county's NHTSA FARS row (per-100k or book, corpus rank, trend, nationwide peer NAME, vs-state gap), not a trip-risk forecast. PlainRoadSafety is informational only. See our disclaimer. Verify with NHTSA FARS → · Read with methodology → · Understanding road fatality data → · Texas state profile →

Williamson

6
Erie

6
Essex

6
Allegheny

6
Somerset

6

What this shows Williamson County sits among nearest nationwide per-capita peers.

How does Williamson County compare?

2023 road deaths per 100,000 residents. Choose any comparison from the menu.

Compare with

Williamson County

6.2 per 100k

Texas county average

27.3 per 100k

Williamson County is 77% safer than the comparison

2023 road deaths from the NHTSA Fatality Analysis Reporting System over population from the U.S. Census Bureau Population Estimates Program (Vintage 2023). Rates shown for counties with 10,000+ residents and a 2023 FARS record.

Among the 15 rated counties in Texas, Williamson County ranks 15 for per-capita risk, below the state's own per-capita average of 27.3 per 100,000 -- nationally, this rate puts it among the safest one in ten U.S. counties by that per-capita measure. The gap between Williamson County's rate and the state average is 21.1 per 100,000. Its closest per-capita peer statewide is Nolan County, at 55.9 per 100,000 (a difference of 49.7). Its peer counties, highest to lowest per 100,000 residents: Leon County (96.7), Wilbarger County (79.9), Ward County (73.0), Eastland County (72.1), Milam County (69.4), Karnes County (66.6), Dawson County (66.6), Comanche County (64.1), Falls County (63.6), Freestone County (63.6), Panola County (61.3), Blanco County (61.3), Live Oak County (60.4), Nolan County (55.9).

Williamson County's rate vs. every rated U.S. county

Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population

6 Among the safer counties a lower per-capita rate than 91% of 2,328 rated counties

rated U.S. counties, bucketed by value

Each bar is a band; taller bars hold more rated counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source NHTSA FARS over U.S. Census Bureau population estimates · 2026-08-09

Williamson County's rate vs. the Texas state average

← Back to Texas All States

Source: NHTSA Fatality Analysis Reporting System (FARS) This information is for research and informational purposes only

Read our methodology - how this data is sourced, computed, and verified.

Counties with similar FARS profiles

Two cross-state peer sets for Williamson County. Same-state rate comparisons stay in the chart above; these neighborhoods are nearest other-state counties with population at least 250,000.

Similar per-capita fatality rate

Nearest counties by deaths per 100,000 residents (6.2 here), outside Texas.

Erie County 6.2 /100k · NY Essex County 6.2 /100k · NJ Allegheny County 6.3 /100k · PA Somerset County 6.3 /100k · NJ

Similar fatality volume

Nearest counties by recorded FARS deaths (370 here), excluding the rate-peer set.

Jefferson County 369 deaths · CO Monroe County 369 deaths · NY Washoe County 368 deaths · NV Anne Arundel County 365 deaths · MD

Verify with NHTSA FARS →

Verify with FHWA →

Source and method. PlainRoadSafety is rendered directly from the National Highway Traffic Safety Administration Fatality Analysis Reporting System (FARS). PlainRoadSafety aggregates published FARS records and does not invent a fatality count the census does not report. County figures are computed directly from NHTSA FARS census data, no figure is typed in by an editor. See our Editorial & Corrections Policy, the methodology behind these numbers, or Report a correction. Data current as of October 2024.