Data / Rankings / Traffic fatality rate / Counties in Montana

Counties in Montana by traffic fatality rate, 2024

Treasure County had the highest traffic fatality rate of 56 counties in 2024, at 135.3 per 100,000 people. Wibaux County had the lowest, at 0 per 100,000 people. The median was 14.8 per 100,000 people and the figure for Montana was 18.1 per 100,000 people. Source: NHTSA and BEA.

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Highest135.3Treasure County
Lowest0Wibaux County
Median14.856 counties
Montana18.1History

Map of counties, 2024

Beaverhead County: 60 per 100,000 peopleBig Horn County: 78.1 per 100,000 peopleBlaine County: 29 per 100,000 peopleBroadwater County: 48.2 per 100,000 peopleCarbon County: 34.8 per 100,000 peopleCarter County: 0 per 100,000 peopleCascade County: 13 per 100,000 peopleChouteau County: 51 per 100,000 peopleCuster County: 25.1 per 100,000 peopleDaniels County: 0 per 100,000 peopleDawson County: 0 per 100,000 peopleDeer Lodge County: 51 per 100,000 peopleFallon County: 0 per 100,000 peopleFergus County: 0 per 100,000 peopleFlathead County: 20.1 per 100,000 peopleGallatin County: 16.5 per 100,000 peopleGarfield County: 84.7 per 100,000 peopleGlacier County: 37 per 100,000 peopleGolden Valley County: 115.9 per 100,000 peopleGranite County: 27.8 per 100,000 peopleHill County: 6.2 per 100,000 peopleJefferson County: 52.6 per 100,000 peopleJudith Basin County: 0 per 100,000 peopleLake County: 26.9 per 100,000 peopleLewis and Clark County: 8 per 100,000 peopleLiberty County: 0 per 100,000 peopleLincoln County: 13.5 per 100,000 peopleMcCone County: 0 per 100,000 peopleMadison County: 10.3 per 100,000 peopleMeagher County: 96.9 per 100,000 peopleMineral County: 19.2 per 100,000 peopleMissoula County: 12.2 per 100,000 peopleMusselshell County: 55 per 100,000 peoplePark County: 22.1 per 100,000 peoplePetroleum County: 0 per 100,000 peoplePhillips County: 47.5 per 100,000 peoplePondera County: 49.4 per 100,000 peoplePowder River County: 0 per 100,000 peoplePowell County: 0 per 100,000 peoplePrairie County: 0 per 100,000 peopleRavalli County: 8.3 per 100,000 peopleRichland County: 0 per 100,000 peopleRoosevelt County: 9.8 per 100,000 peopleRosebud County: 36.6 per 100,000 peopleSanders County: 21.6 per 100,000 peopleSheridan County: 0 per 100,000 peopleSilver Bow County: 8.3 per 100,000 peopleStillwater County: 74.1 per 100,000 peopleSweet Grass County: 53.2 per 100,000 peopleTeton County: 15.5 per 100,000 peopleToole County: 0 per 100,000 peopleTreasure County: 135.3 per 100,000 peopleValley County: 0 per 100,000 peopleWheatland County: 0 per 100,000 peopleWibaux County: 0 per 100,000 peopleYellowstone County: 14 per 100,000 people
  • Under 7
  • 7 to 15
  • 15 to 29
  • 29 to 52
  • 52 and over
per 100,000 people, 2024. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Treasure County: 135.3 per 100,000 peopleTreasure County135.3Golden Valley County: 115.9 per 100,000 peopleGolden Valley County115.9Meagher County: 96.9 per 100,000 peopleMeagher County96.9Garfield County: 84.7 per 100,000 peopleGarfield County84.7Big Horn County: 78.1 per 100,000 peopleBig Horn County78.1Stillwater County: 74.1 per 100,000 peopleStillwater County74.1Beaverhead County: 60 per 100,000 peopleBeaverhead County60Musselshell County: 55 per 100,000 peopleMusselshell County55Sweet Grass County: 53.2 per 100,000 peopleSweet Grass County53.2Jefferson County: 52.6 per 100,000 peopleJefferson County52.6Chouteau County: 51 per 100,000 peopleChouteau County51Deer Lodge County: 51 per 100,000 peopleDeer Lodge County51Pondera County: 49.4 per 100,000 peoplePondera County49.4Broadwater County: 48.2 per 100,000 peopleBroadwater County48.2Phillips County: 47.5 per 100,000 peoplePhillips County47.5Glacier County: 37 per 100,000 peopleGlacier County37Rosebud County: 36.6 per 100,000 peopleRosebud County36.6Carbon County: 34.8 per 100,000 peopleCarbon County34.8Blaine County: 29 per 100,000 peopleBlaine County29Granite County: 27.8 per 100,000 peopleGranite County27.8Lake County: 26.9 per 100,000 peopleLake County26.9Custer County: 25.1 per 100,000 peopleCuster County25.1Park County: 22.1 per 100,000 peoplePark County22.1Sanders County: 21.6 per 100,000 peopleSanders County21.6Flathead County: 20.1 per 100,000 peopleFlathead County20.1Mineral County: 19.2 per 100,000 peopleMineral County19.2Gallatin County: 16.5 per 100,000 peopleGallatin County16.5Teton County: 15.5 per 100,000 peopleTeton County15.5Yellowstone County: 14 per 100,000 peopleYellowstone County14Lincoln County: 13.5 per 100,000 peopleLincoln County13.5Cascade County: 13 per 100,000 peopleCascade County13Missoula County: 12.2 per 100,000 peopleMissoula County12.2Madison County: 10.3 per 100,000 peopleMadison County10.3Roosevelt County: 9.8 per 100,000 peopleRoosevelt County9.8Silver Bow County: 8.3 per 100,000 peopleSilver Bow County8.3Ravalli County: 8.3 per 100,000 peopleRavalli County8.3Lewis and Clark County: 8 per 100,000 peopleLewis and Clark County8Hill County: 6.2 per 100,000 peopleHill County6.2Carter County: 0 per 100,000 peopleCarter County0Daniels County: 0 per 100,000 peopleDaniels County0Dawson County: 0 per 100,000 peopleDawson County0Fallon County: 0 per 100,000 peopleFallon County0Fergus County: 0 per 100,000 peopleFergus County0Judith Basin County: 0 per 100,000 peopleJudith Basin County0Liberty County: 0 per 100,000 peopleLiberty County0McCone County: 0 per 100,000 peopleMcCone County0Petroleum County: 0 per 100,000 peoplePetroleum County0Powder River County: 0 per 100,000 peoplePowder River County0Powell County: 0 per 100,000 peoplePowell County0Prairie County: 0 per 100,000 peoplePrairie County0Richland County: 0 per 100,000 peopleRichland County0Sheridan County: 0 per 100,000 peopleSheridan County0Toole County: 0 per 100,000 peopleToole County0Valley County: 0 per 100,000 peopleValley County0Wheatland County: 0 per 100,000 peopleWheatland County0Wibaux County: 0 per 100,000 peopleWibaux County0Treasure County: 135.3 per 100,000 peopleTreasure County135.3Golden Valley County: 115.9 per 100,000 peopleGolden Valley County115.9Meagher County: 96.9 per 100,000 peopleMeagher County96.9Garfield County: 84.7 per 100,000 peopleGarfield County84.7Big Horn County: 78.1 per 100,000 peopleBig Horn County78.1Stillwater County: 74.1 per 100,000 peopleStillwater County74.1Beaverhead County: 60 per 100,000 peopleBeaverhead County60Musselshell County: 55 per 100,000 peopleMusselshell County55Sweet Grass County: 53.2 per 100,000 peopleSweet Grass County53.2Jefferson County: 52.6 per 100,000 peopleJefferson County52.6Chouteau County: 51 per 100,000 peopleChouteau County51Deer Lodge County: 51 per 100,000 peopleDeer Lodge County51Pondera County: 49.4 per 100,000 peoplePondera County49.4Broadwater County: 48.2 per 100,000 peopleBroadwater County48.2Phillips County: 47.5 per 100,000 peoplePhillips County47.5Glacier County: 37 per 100,000 peopleGlacier County37Rosebud County: 36.6 per 100,000 peopleRosebud County36.6Carbon County: 34.8 per 100,000 peopleCarbon County34.8Blaine County: 29 per 100,000 peopleBlaine County29Granite County: 27.8 per 100,000 peopleGranite County27.8Lake County: 26.9 per 100,000 peopleLake County26.9Custer County: 25.1 per 100,000 peopleCuster County25.1Park County: 22.1 per 100,000 peoplePark County22.1Sanders County: 21.6 per 100,000 peopleSanders County21.6Flathead County: 20.1 per 100,000 peopleFlathead County20.1Mineral County: 19.2 per 100,000 peopleMineral County19.2Gallatin County: 16.5 per 100,000 peopleGallatin County16.5Teton County: 15.5 per 100,000 peopleTeton County15.5Yellowstone County: 14 per 100,000 peopleYellowstone County14Lincoln County: 13.5 per 100,000 peopleLincoln County13.5Cascade County: 13 per 100,000 peopleCascade County13Missoula County: 12.2 per 100,000 peopleMissoula County12.2Madison County: 10.3 per 100,000 peopleMadison County10.3Roosevelt County: 9.8 per 100,000 peopleRoosevelt County9.8Silver Bow County: 8.3 per 100,000 peopleSilver Bow County8.3Ravalli County: 8.3 per 100,000 peopleRavalli County8.3Lewis and Clark County: 8 per 100,000 peopleLewis and Clark County8Hill County: 6.2 per 100,000 peopleHill County6.2Carter County: 0 per 100,000 peopleCarter County0Daniels County: 0 per 100,000 peopleDaniels County0Dawson County: 0 per 100,000 peopleDawson County0Fallon County: 0 per 100,000 peopleFallon County0Fergus County: 0 per 100,000 peopleFergus County0Judith Basin County: 0 per 100,000 peopleJudith Basin County0Liberty County: 0 per 100,000 peopleLiberty County0McCone County: 0 per 100,000 peopleMcCone County0Petroleum County: 0 per 100,000 peoplePetroleum County0Powder River County: 0 per 100,000 peoplePowder River County0Powell County: 0 per 100,000 peoplePowell County0Prairie County: 0 per 100,000 peoplePrairie County0Richland County: 0 per 100,000 peopleRichland County0Sheridan County: 0 per 100,000 peopleSheridan County0Toole County: 0 per 100,000 peopleToole 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

RankCounties2024
per 100,000 people		Change on 2023
1Treasure County Estimated135.3+135.3 pts
2Golden Valley County Estimated115.9+115.9 pts
3Meagher County Estimated96.9+48.2 pts
4Garfield County Estimated84.7+2.4 pts
5Big Horn County Estimated78.1+8 pts
6Stillwater County Estimated74.1+63.2 pts
7Beaverhead County Estimated60+9.4 pts
8Musselshell County Estimated55-0.8 pts
9Sweet Grass County Estimated53.2+26.6 pts
10Jefferson County Estimated52.6+29.7 pts
11Chouteau County Estimated51+51 pts
12Deer Lodge County Estimated51+51 pts
13Pondera County Estimated49.4+0.2 pts
14Broadwater County Estimated48.2+11 pts
15Phillips County Estimated47.5+47.5 pts
16Glacier County Estimated37+14.9 pts
17Rosebud County Estimated36.6-24.9 pts
18Carbon County Estimated34.8-26.5 pts
19Blaine County Estimated29+14.4 pts
20Granite County Estimated27.8-56.4 pts
21Lake County Estimated26.9+2.9 pts
22Custer County Estimated25.1+25.1 pts
23Park County Estimated22.1-11.3 pts
24Sanders County Estimated21.6-7.6 pts
25Flathead County Estimated20.1-0.2 pts
26Mineral County Estimated19.2+19.2 pts
27Gallatin County Estimated16.5+3 pts
28Teton County Estimated15.5-0 pts
29Yellowstone County Estimated14-1.8 pts
30Lincoln County Estimated13.5-27.6 pts
31Cascade County Estimated13+3.6 pts
32Missoula County Estimated12.2-6.7 pts
33Madison County Estimated10.3-10.8 pts
34Roosevelt County Estimated9.8-19.2 pts
35Silver Bow County Estimated8.3+2.8 pts
36Ravalli County Estimated8.3-6.4 pts
37Lewis and Clark County Estimated8-2.7 pts
38Hill County Estimated6.2-6.1 pts
39Carter County Estimated00 pts
39Daniels County Estimated0-61.5 pts
39Dawson County Estimated00 pts
39Fallon County Estimated00 pts
39Fergus County Estimated0-8.5 pts
39Judith Basin County Estimated00 pts
39Liberty County Estimated00 pts
39McCone County Estimated00 pts
39Petroleum County Estimated00 pts
39Powder River County Estimated0-57.8 pts
39Powell County Estimated0-56.2 pts
39Prairie County Estimated0-89.7 pts
39Richland County Estimated00 pts
39Sheridan County Estimated00 pts
39Toole County Estimated00 pts
39Valley County Estimated0-13.4 pts
39Wheatland County Estimated00 pts
39Wibaux County Estimated00 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, 2024) [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, 2024. 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, 2024. 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, 2024 [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_2024,
  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, 2024}},
  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. 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, 2024
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
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.
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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Questions

Which county has the highest traffic fatality rate?

Treasure County, with 135.3 per 100,000 people in 2024, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Wibaux County, with 0 per 100,000 people in 2024.

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