Fatal RoadsSearch

Edition: FARS 2024, annual fileNHTSA released it on Release dates

Niobrara County, Wyoming: fatal crash statistics

FARS records no fatal crash in Niobrara County in 2024.

FARS records 21 deaths in 16 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 87.7 deaths for each 100,000 residents in a year.

The rate of Wyoming in the same years is 21.6.

By deaths from 2015 to 2024, Niobrara County was number 19 of 23 counties of Wyoming.

Deaths in Niobrara County fell by 30.0% between the ten years 2005 to 2014 (30) and the ten years 2015 to 2024 (21).

In the counties of Wyoming the deaths fell by 13.4% between the same years.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.

The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

This page rests on the FARS 2024 annual file. NHTSA released it on . NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in Niobrara County by year, 2015 to 2024

Table 1 has the numbers. Go to the table

Since the last update: no figure of this county has a change on record.

Deaths and fatal crashes by year

Table 1.Niobrara County: deaths and fatal crashes by year, 2015 to 2024
YearDeathsFatal crashesCrashes with a driver recorded as drinking
2024000
2023761 or 2
2022000
2021000
2020000
20191 or 21 or 21 or 2
2018750
2017000
2016330
20151 or 21 or 20
2015 to 202421161 or 2
Each year from 1975
Figure 2.Deaths in Niobrara County by year, 1975 to 2024

Tallest column: 9 (1985)2024: 0

The columns with a stronger shade are the years 2015 to 2024.

Table 2.Niobrara County: deaths and fatal crashes by year, 1975 to 2024
YearDeathsFatal crashes
202400
202376
202200
202100
202000
20191 or 21 or 2
201875
201700
201633
20151 or 21 or 2
201453
20131 or 21 or 2
201265
201143
20101 or 21 or 2
200931 or 2
200800
20071 or 21 or 2
200633
200543
200400
200374
200200
200144
200063
19991 or 21 or 2
199841 or 2
199700
199641 or 2
19951 or 21 or 2
199400
19931 or 21 or 2
199200
199100
199033
198953
19881 or 21 or 2
19871 or 21 or 2
198600
198597
198433
198300
19821 or 21 or 2
19811 or 21 or 2
19801 or 21 or 2
197900
197841 or 2
197733
197641 or 2
197500

Note: a count of 1 or 2 is written "1 or 2". A death is in FARS when it occurs in 30 days or less after the crash.

Rate for each 100,000 residents

Table 3.Niobrara County beside Wyoming and the United States: deaths for each 100,000 residents
PeriodNiobrara CountyWyomingUnited States
20240.018.211.5
2015 to 2024, in a year87.721.611.8

Note: the rate divides the deaths in the county by its residents. Persons who do not live in the county are in the deaths, not in the residents.

Population: Census Bureau estimates, vintage 2025. Niobrara County had 2,315 residents in 2024.

Factors that NHTSA records

Table 4.Niobrara County: counts by recorded factor, 2015 to 2024
FactorCountCounted amongShareShare in Wyoming
A driver recorded as drinkingof 16 fatal crashes1 or 216 fatal crashes32.5%
A speeding-related driverof 16 fatal crashes316 fatal crashes35.4%
No restraint usedof 14 occupant deaths with restraint use known1 or 214 occupant deathswith restraint use known60.6%
Pedestriansof 21 deaths1 or 221 deaths5.6%
Bicyclistsof 21 deaths021 deaths0.5%
Motorcyclistsof 21 deaths421 deaths15.2%
On a rural roadof 16 fatal crashes with the condition reported1616 fatal crasheswith the condition reported80.5%
In the darkof 16 fatal crashes with the condition reported416 fatal crasheswith the condition reported36.3%

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure, which uses a blood alcohol concentration of .08 g/dL or higher. One crash can be in two or more rows. NHTSA's definitions

Note that alcohol data is often missing. For that reason, this data element may under-count the actual number of drinking drivers.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

Weekday, time and road class

Table 5.Niobrara County: fatal crashes by weekday and time of day, 2015 to 2024
WeekdayMidnight to 6 a.m.6 a.m. to noonNoon to 6 p.m.6 p.m. to midnightAll
Sunday001 or 201 or 2
Monday01 or 2001 or 2
Tuesday001 or 201 or 2
Wednesday01 or 21 or 21 or 25
Thursday001 or 21 or 24
Friday01 or 2001 or 2
Saturday01 or 2001 or 2
All days057416

Note: a cell with a stronger shade has a larger count. The table has the fatal crashes with a known hour and weekday.

Table 6.Niobrara County: fatal crashes by road function class, 2015 to 2024
Road function classFatal crashesShareShare in Wyoming
Interstate00.0%26.5%
Other freeways and expressways00.0%0.1%
Other principal arterial1593.8%33.1%
Minor arterial00.0%9.9%
Major collector1 or 26.3%14.8%
Minor collector00.0%3.8%
Local00.0%11.9%
Not reported0n/an/a

Note: the classes are those of the Federal Highway Administration. The shares are of the crashes with a reported class. Road function classes

Light condition and weather
Table 7.Niobrara County: fatal crashes by light condition, 2015 to 2024
Light conditionFatal crashes
Daylight12
Dark, not lighted3
Dark, lighted1 or 2
Dawn0
Dusk0
Dark, lighting unknown0
Other or unknown0
Table 8.Niobrara County: fatal crashes by weather, 2015 to 2024
WeatherFatal crashes
Clear13
Cloudy0
Rain0
Snow, sleet or freezing rain1 or 2
Fog, smog or smoke0
Crosswinds or blowing sand/snow1 or 2
Other or not reported0

Routes in the county

Table 9.Signed routes in Niobrara County that have a page: fatal crashes, 2015 to 2024
RouteTypeIn NiobraraIn all of Wyoming
US Route 20US highway1 or 238
US Route 85US highway635

Note: the table has each route with a page that has a fatal crash in the county, in name order. Local streets and county roads have no page. Their crashes are in the county totals. All routes in Wyoming

Adjacent counties

These lists are for navigation. They are in name order.

Figure 3.Niobrara County on the county map of Wyoming

Deaths for each 100,000 residents in a year, 2015 to 2024

  • Fewer than 100 counties
  • 10 to 14.95 counties
  • 15 to 19.95 counties
  • 20 to 29.95 counties
  • 30 or more8 counties
  • Niobrara County: 87.7

The limits of the classes are the same for every state. A county with few residents can show a high rate from few deaths. A class is not a judgement of a county. The full map and the table of counties of Wyoming

Table 10.Counties that share a boundary line with Niobrara County
CountyStateDeaths, 2024Deaths, 2015 to 2024For each 100,000 residents in a year
Sioux CountyNebraska1 or 2758.7
Custer CountySouth Dakota1 or 23135.2
Fall River CountySouth Dakota52535.7
Converse CountyWyoming95841.9
Goshen CountyWyoming1 or 22720.8
Platte CountyWyoming1 or 24754.5
Weston CountyWyoming1 or 21217.3

Source of the list: Census Bureau county adjacency file, 2026 edition.

Counties of similar population

These counties of Wyoming have a population nearest to that of Niobrara County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

These links go to the sites of the agencies. They were checked on .

Cite this page

Fatal Roads. Niobrara County, Wyoming: fatal crash statistics. https://fatalroads.com/county/wy/niobrara/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to .

The address of this page does not change.

Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 1975 to 2024. The factors use the vehicle and person files from 2015. Residents: Census Bureau, Population Estimates Program, vintage 2025. Map: Census Bureau cartographic boundary file, 2021 edition. Data to . The figures are totals. No page of this site is about one crash or one person.

How the figures are made. Data sources and licences. Corrections.

Questions

How many deaths did FARS record in Niobrara in the ten years before 2015?

FARS records 30 deaths in Niobrara County from 2005 to 2014. It records 21 deaths from 2015 to 2024.

How many fatal crashes in Niobrara had a driver recorded as drinking?

FARS records a driver as drinking in 1 or 2 of 16 fatal crashes from 2015 to 2024. This count is not NHTSA's alcohol-impaired measure. NHTSA says that alcohol data is often missing, so the count may be too low.

How many fatal crashes did FARS record on signed routes in Niobrara?

FARS records 1 or 2 fatal crashes on US Route 20 in the county from 2015 to 2024. FARS records 6 fatal crashes on US Route 85 in the county from 2015 to 2024.