Counties in Montana by traffic fatality rate

Treasure County had the highest traffic fatality rate of 56 counties in 2016, at 419.6 per 100,000 people. Wibaux County had the lowest, at 0 per 100,000 people. The median was 17.4 per 100,000 people and the figure for Montana was 18.2 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest419.6Treasure County
Median17.456 counties
Montana18.2History

Map of counties, 2016

Beaverhead County: 53.4 per 100,000 peopleBig Horn County: 96.8 per 100,000 peopleBlaine County: 28.7 per 100,000 peopleBroadwater County: 0 per 100,000 peopleCarbon County: 9.8 per 100,000 peopleCarter County: 0 per 100,000 peopleCascade County: 14.4 per 100,000 peopleChouteau County: 17 per 100,000 peopleCuster County: 8.2 per 100,000 peopleDaniels County: 0 per 100,000 peopleDawson County: 21.1 per 100,000 peopleDeer Lodge County: 32.6 per 100,000 peopleFallon County: 0 per 100,000 peopleFergus County: 17.3 per 100,000 peopleFlathead County: 18.5 per 100,000 peopleGallatin County: 9.4 per 100,000 peopleGarfield County: 81.1 per 100,000 peopleGlacier County: 50.8 per 100,000 peopleGolden Valley County: 0 per 100,000 peopleGranite County: 92.1 per 100,000 peopleHill County: 0 per 100,000 peopleJefferson County: 8.6 per 100,000 peopleJudith Basin County: 51.2 per 100,000 peopleLake County: 26.8 per 100,000 peopleLewis and Clark County: 5.9 per 100,000 peopleLiberty County: 0 per 100,000 peopleLincoln County: 21.1 per 100,000 peopleMcCone County: 0 per 100,000 peopleMadison County: 12.7 per 100,000 peopleMeagher County: 104.8 per 100,000 peopleMineral County: 72.5 per 100,000 peopleMissoula County: 17.5 per 100,000 peopleMusselshell County: 42.6 per 100,000 peoplePark County: 18.3 per 100,000 peoplePetroleum County: 203.3 per 100,000 peoplePhillips County: 23.2 per 100,000 peoplePondera County: 0 per 100,000 peoplePowder River County: 0 per 100,000 peoplePowell County: 57.9 per 100,000 peoplePrairie County: 85.3 per 100,000 peopleRavalli County: 4.8 per 100,000 peopleRichland County: 25.5 per 100,000 peopleRoosevelt County: 53.9 per 100,000 peopleRosebud County: 78.3 per 100,000 peopleSanders County: 17.1 per 100,000 peopleSheridan County: 0 per 100,000 peopleSilver Bow County: 8.6 per 100,000 peopleStillwater County: 68.1 per 100,000 peopleSweet Grass County: 27.7 per 100,000 peopleTeton County: 16.6 per 100,000 peopleToole County: 38.9 per 100,000 peopleTreasure County: 419.6 per 100,000 peopleValley County: 0 per 100,000 peopleWheatland County: 0 per 100,000 peopleWibaux County: 0 per 100,000 peopleYellowstone County: 10.7 per 100,000 people
  • Under 9
  • 9 to 17
  • 17 to 28
  • 28 to 66
  • 66 and over
per 100,000 people, 2016. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2016

Treasure County: 419.6 per 100,000 peopleTreasure County419.6Petroleum County: 203.3 per 100,000 peoplePetroleum County203.3Meagher County: 104.8 per 100,000 peopleMeagher County104.8Big Horn County: 96.8 per 100,000 peopleBig Horn County96.8Granite County: 92.1 per 100,000 peopleGranite County92.1Prairie County: 85.3 per 100,000 peoplePrairie County85.3Garfield County: 81.1 per 100,000 peopleGarfield County81.1Rosebud County: 78.3 per 100,000 peopleRosebud County78.3Mineral County: 72.5 per 100,000 peopleMineral County72.5Stillwater County: 68.1 per 100,000 peopleStillwater County68.1Powell County: 57.9 per 100,000 peoplePowell County57.9Roosevelt County: 53.9 per 100,000 peopleRoosevelt County53.9Beaverhead County: 53.4 per 100,000 peopleBeaverhead County53.4Judith Basin County: 51.2 per 100,000 peopleJudith Basin County51.2Glacier County: 50.8 per 100,000 peopleGlacier County50.8Musselshell County: 42.6 per 100,000 peopleMusselshell County42.6Toole County: 38.9 per 100,000 peopleToole County38.9Deer Lodge County: 32.6 per 100,000 peopleDeer Lodge County32.6Blaine County: 28.7 per 100,000 peopleBlaine County28.7Sweet Grass County: 27.7 per 100,000 peopleSweet Grass County27.7Lake County: 26.8 per 100,000 peopleLake County26.8Richland County: 25.5 per 100,000 peopleRichland County25.5Phillips County: 23.2 per 100,000 peoplePhillips County23.2Lincoln County: 21.1 per 100,000 peopleLincoln County21.1Dawson County: 21.1 per 100,000 peopleDawson County21.1Flathead County: 18.5 per 100,000 peopleFlathead County18.5Park County: 18.3 per 100,000 peoplePark County18.3Missoula County: 17.5 per 100,000 peopleMissoula County17.5Fergus County: 17.3 per 100,000 peopleFergus County17.3Sanders County: 17.1 per 100,000 peopleSanders County17.1Chouteau County: 17 per 100,000 peopleChouteau County17Teton County: 16.6 per 100,000 peopleTeton County16.6Cascade County: 14.4 per 100,000 peopleCascade County14.4Madison County: 12.7 per 100,000 peopleMadison County12.7Yellowstone County: 10.7 per 100,000 peopleYellowstone County10.7Carbon County: 9.8 per 100,000 peopleCarbon County9.8Gallatin County: 9.4 per 100,000 peopleGallatin County9.4Silver Bow County: 8.6 per 100,000 peopleSilver Bow County8.6Jefferson County: 8.6 per 100,000 peopleJefferson County8.6Custer County: 8.2 per 100,000 peopleCuster County8.2Lewis and Clark County: 5.9 per 100,000 peopleLewis and Clark County5.9Ravalli County: 4.8 per 100,000 peopleRavalli County4.8Broadwater County: 0 per 100,000 peopleBroadwater County0Carter County: 0 per 100,000 peopleCarter County0Daniels County: 0 per 100,000 peopleDaniels County0Fallon County: 0 per 100,000 peopleFallon County0Golden Valley County: 0 per 100,000 peopleGolden Valley County0Hill County: 0 per 100,000 peopleHill County0Liberty County: 0 per 100,000 peopleLiberty County0McCone County: 0 per 100,000 peopleMcCone County0Pondera County: 0 per 100,000 peoplePondera County0Powder River County: 0 per 100,000 peoplePowder River County0Sheridan County: 0 per 100,000 peopleSheridan County0Valley County: 0 per 100,000 peopleValley County0Wheatland County: 0 per 100,000 peopleWheatland County0Wibaux County: 0 per 100,000 peopleWibaux County0Treasure County: 419.6 per 100,000 peopleTreasure County419.6Petroleum County: 203.3 per 100,000 peoplePetroleum County203.3Meagher County: 104.8 per 100,000 peopleMeagher County104.8Big Horn County: 96.8 per 100,000 peopleBig Horn County96.8Granite County: 92.1 per 100,000 peopleGranite County92.1Prairie County: 85.3 per 100,000 peoplePrairie County85.3Garfield County: 81.1 per 100,000 peopleGarfield County81.1Rosebud County: 78.3 per 100,000 peopleRosebud County78.3Mineral County: 72.5 per 100,000 peopleMineral County72.5Stillwater County: 68.1 per 100,000 peopleStillwater County68.1Powell County: 57.9 per 100,000 peoplePowell County57.9Roosevelt County: 53.9 per 100,000 peopleRoosevelt County53.9Beaverhead County: 53.4 per 100,000 peopleBeaverhead County53.4Judith Basin County: 51.2 per 100,000 peopleJudith Basin County51.2Glacier County: 50.8 per 100,000 peopleGlacier County50.8Musselshell County: 42.6 per 100,000 peopleMusselshell County42.6Toole County: 38.9 per 100,000 peopleToole County38.9Deer Lodge County: 32.6 per 100,000 peopleDeer Lodge County32.6Blaine County: 28.7 per 100,000 peopleBlaine County28.7Sweet Grass County: 27.7 per 100,000 peopleSweet Grass County27.7Lake County: 26.8 per 100,000 peopleLake County26.8Richland County: 25.5 per 100,000 peopleRichland County25.5Phillips County: 23.2 per 100,000 peoplePhillips County23.2Lincoln County: 21.1 per 100,000 peopleLincoln County21.1Dawson County: 21.1 per 100,000 peopleDawson County21.1Flathead County: 18.5 per 100,000 peopleFlathead County18.5Park County: 18.3 per 100,000 peoplePark County18.3Missoula County: 17.5 per 100,000 peopleMissoula County17.5Fergus County: 17.3 per 100,000 peopleFergus County17.3Sanders County: 17.1 per 100,000 peopleSanders County17.1Chouteau County: 17 per 100,000 peopleChouteau County17Teton County: 16.6 per 100,000 peopleTeton County16.6Cascade County: 14.4 per 100,000 peopleCascade County14.4Madison County: 12.7 per 100,000 peopleMadison County12.7Yellowstone County: 10.7 per 100,000 peopleYellowstone County10.7Carbon County: 9.8 per 100,000 peopleCarbon County9.8Gallatin County: 9.4 per 100,000 peopleGallatin County9.4Silver Bow County: 8.6 per 100,000 peopleSilver Bow County8.6Jefferson County: 8.6 per 100,000 peopleJefferson County8.6Custer County: 8.2 per 100,000 peopleCuster County8.2Lewis and Clark County: 5.9 per 100,000 peopleLewis and Clark County5.9Ravalli County: 4.8 per 100,000 peopleRavalli County4.8Broadwater County: 0 per 100,000 peopleBroadwater County0Carter County: 0 per 100,000 peopleCarter County0Daniels County: 0 per 100,000 peopleDaniels County0Fallon County: 0 per 100,000 peopleFallon County0Golden Valley County: 0 per 100,000 peopleGolden Valley County0Hill County: 0 per 100,000 peopleHill County0Liberty County: 0 per 100,000 peopleLiberty County0McCone County: 0 per 100,000 peopleMcCone County0Pondera County: 0 per 100,000 peoplePondera County0Powder River County: 0 per 100,000 peoplePowder River County0Sheridan County: 0 per 100,000 peopleSheridan County0Valley County: 0 per 100,000 peopleValley County0Wheatland County: 0 per 100,000 peopleWheatland County0Wibaux County: 0 per 100,000 peopleWibaux County0
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2016
per 100,000 people
Change on 2015
1Treasure County419.6+419.6 pts
2Petroleum County203.3+203.3 pts
3Meagher County104.8+104.8 pts
4Big Horn County96.8+14.1 pts
5Granite County92.1+60.3 pts
6Prairie County85.3+85.3 pts
7Garfield County81.1-0.1 pts
8Rosebud County78.3+34.3 pts
9Mineral County72.5+1.1 pts
10Stillwater County68.1+45.8 pts
11Powell County57.9+28.7 pts
12Roosevelt County53.9+1 pts
13Beaverhead County53.4+31.7 pts
14Judith Basin County51.2-206.3 pts
15Glacier County50.8+7 pts
16Musselshell County42.6-0.2 pts
17Toole County38.9+19.8 pts
18Deer Lodge County32.6-10.8 pts
19Blaine County28.7-29.3 pts
20Sweet Grass County27.7+0.1 pts
21Lake County26.8+6.5 pts
22Richland County25.5+17.3 pts
23Phillips County23.2-23.2 pts
24Lincoln County21.1-5.5 pts
25Dawson County21.1-9.6 pts
26Flathead County18.5+5.9 pts
27Park County18.3-6.3 pts
28Missoula County17.5+4.1 pts
29Fergus County17.3-8.8 pts
30Sanders County17.1-26.5 pts
31Chouteau County17-136.2 pts
32Teton County16.6-49.3 pts
33Cascade County14.4+3.6 pts
34Madison County12.7-63.4 pts
35Yellowstone County10.7-0.1 pts
36Carbon County9.8-78.6 pts
37Gallatin County9.4-0.4 pts
38Silver Bow County8.6-8.6 pts
39Jefferson County8.6-26.4 pts
40Custer County8.2-16 pts
41Lewis and Clark County5.9-16.5 pts
42Ravalli County4.8-2.5 pts
43Broadwater County0-33.8 pts
43Carter County0-161.9 pts
43Daniels County00 pts
43Fallon County00 pts
43Golden Valley County00 pts
43Hill County0-42.7 pts
43Liberty County00 pts
43McCone County00 pts
43Pondera County00 pts
43Powder River County0-56.1 pts
43Sheridan County0-26.2 pts
43Valley County0-51.6 pts
43Wheatland County0-48.2 pts
43Wibaux County00 pts

Other periods

About this ranking

Traffic fatalities (NHTSA FARS) per 100,000 residents in the same year and place.

Deaths are counted where the crash happened and divided by the resident population, so counties with busy highways and few residents can show very high rates. Differs from the WHO road traffic death rate (road_traffic_death_rate).

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Retrieved 2026-10-12.

Citation styles

Invokely calculated this figure from the publishers' data, so Invokely is the author and the publishers of the inputs are named.

APA 7

Invokely. (n.d.). NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents (Counties in Montana by traffic fatality rate, 2016) [Data set]. Calculated from data by NHTSA and BEA. Retrieved October 12, 2026, from https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k

MLA 9

NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents, Counties in Montana by traffic fatality rate, 2016. Calculated from data by NHTSA and BEA. Invokely, https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Accessed 12 Oct. 2026.

Chicago (author-date)

Invokely. n.d. NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. Counties in Montana by traffic fatality rate, 2016. Dataset. Calculated from data by NHTSA and BEA. Accessed October 12, 2026. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k.

Harvard

Invokely (no date) NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents, Counties in Montana by traffic fatality rate, 2016 [Dataset]. Calculated from data by NHTSA and BEA. Available at: https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k (Accessed: 12 October 2026).

BibTeX
@misc{invokely_counties_in_montana_by_2016,
  author = {{Invokely}},
  title = {{NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in Montana by traffic fatality rate, 2016}},
  howpublished = {Data set},
  url = {https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k},
  urldate = {2026-10-12},
  note = {Calculated from data by NHTSA and BEA. Accessed via Invokely, https://invokely.ai/rankings/traffic-fatality-rate/montana-counties?period=2016. Publisher attribution: Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology\#traffic\_fatality\_rate\_per\_100k. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - Invokely
TI  - NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in Montana by traffic fatality rate, 2016
PB  - Invokely
DB  - Invokely
UR  - https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k
L2  - https://invokely.ai/rankings/traffic-fatality-rate/montana-counties?period=2016
Y2  - 2026/10/12
N1  - Calculated from data by NHTSA and BEA.
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatality-rate/montana-counties?period=2016.
N1  - Publisher attribution: Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Montana by traffic fatality rate using official data, and cite the source.
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Questions

Which county has the highest traffic fatality rate?

Treasure County, with 419.6 per 100,000 people in 2016, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Wibaux County, with 0 per 100,000 people in 2016.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Invokely, NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. Retrieved 2026-10-12.

Traffic fatality rate: other rankings

Counties in Montana: more rankings