Counties in Montana by traffic fatality rate

Golden Valley County had the highest traffic fatality rate of 56 counties in 2021, at 245.1 per 100,000 people. Wibaux County had the lowest, at 0 per 100,000 people. The median was 23.4 per 100,000 people and the figure for Montana was 21.6 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Median23.456 counties
Montana21.6History

Map of counties, 2021

Beaverhead County: 20.9 per 100,000 peopleBig Horn County: 69.8 per 100,000 peopleBlaine County: 0 per 100,000 peopleBroadwater County: 0 per 100,000 peopleCarbon County: 18.3 per 100,000 peopleCarter County: 0 per 100,000 peopleCascade County: 15.4 per 100,000 peopleChouteau County: 50.5 per 100,000 peopleCuster County: 25.1 per 100,000 peopleDaniels County: 0 per 100,000 peopleDawson County: 33.9 per 100,000 peopleDeer Lodge County: 0 per 100,000 peopleFallon County: 0 per 100,000 peopleFergus County: 25.8 per 100,000 peopleFlathead County: 18.4 per 100,000 peopleGallatin County: 9.7 per 100,000 peopleGarfield County: 82.9 per 100,000 peopleGlacier County: 51 per 100,000 peopleGolden Valley County: 245.1 per 100,000 peopleGranite County: 89.4 per 100,000 peopleHill County: 6.2 per 100,000 peopleJefferson County: 104.2 per 100,000 peopleJudith Basin County: 98 per 100,000 peopleLake County: 31.2 per 100,000 peopleLewis and Clark County: 12.4 per 100,000 peopleLiberty County: 0 per 100,000 peopleLincoln County: 29.1 per 100,000 peopleMcCone County: 0 per 100,000 peopleMadison County: 11.2 per 100,000 peopleMeagher County: 101.9 per 100,000 peopleMineral County: 82.3 per 100,000 peopleMissoula County: 15 per 100,000 peopleMusselshell County: 20.4 per 100,000 peoplePark County: 28.5 per 100,000 peoplePetroleum County: 0 per 100,000 peoplePhillips County: 95 per 100,000 peoplePondera County: 83.1 per 100,000 peoplePowder River County: 58.6 per 100,000 peoplePowell County: 71.2 per 100,000 peoplePrairie County: 0 per 100,000 peopleRavalli County: 21.7 per 100,000 peopleRichland County: 0 per 100,000 peopleRoosevelt County: 37.1 per 100,000 peopleRosebud County: 37.1 per 100,000 peopleSanders County: 46.3 per 100,000 peopleSheridan County: 56 per 100,000 peopleSilver Bow County: 11.3 per 100,000 peopleStillwater County: 11.1 per 100,000 peopleSweet Grass County: 54 per 100,000 peopleTeton County: 15.9 per 100,000 peopleToole County: 20.1 per 100,000 peopleTreasure County: 130.2 per 100,000 peopleValley County: 52.9 per 100,000 peopleWheatland County: 49 per 100,000 peopleWibaux County: 0 per 100,000 peopleYellowstone County: 17.3 per 100,000 people
  • Under 15
  • 15 to 23
  • 23 to 48
  • 48 to 80
  • 80 and over
per 100,000 people, 2021. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Golden Valley County: 245.1 per 100,000 peopleGolden Valley County245.1Treasure County: 130.2 per 100,000 peopleTreasure County130.2Jefferson County: 104.2 per 100,000 peopleJefferson County104.2Meagher County: 101.9 per 100,000 peopleMeagher County101.9Judith Basin County: 98 per 100,000 peopleJudith Basin County98Phillips County: 95 per 100,000 peoplePhillips County95Granite County: 89.4 per 100,000 peopleGranite County89.4Pondera County: 83.1 per 100,000 peoplePondera County83.1Garfield County: 82.9 per 100,000 peopleGarfield County82.9Mineral County: 82.3 per 100,000 peopleMineral County82.3Powell County: 71.2 per 100,000 peoplePowell County71.2Big Horn County: 69.8 per 100,000 peopleBig Horn County69.8Powder River County: 58.6 per 100,000 peoplePowder River County58.6Sheridan County: 56 per 100,000 peopleSheridan County56Sweet Grass County: 54 per 100,000 peopleSweet Grass County54Valley County: 52.9 per 100,000 peopleValley County52.9Glacier County: 51 per 100,000 peopleGlacier County51Chouteau County: 50.5 per 100,000 peopleChouteau County50.5Wheatland County: 49 per 100,000 peopleWheatland County49Sanders County: 46.3 per 100,000 peopleSanders County46.3Rosebud County: 37.1 per 100,000 peopleRosebud County37.1Roosevelt County: 37.1 per 100,000 peopleRoosevelt County37.1Dawson County: 33.9 per 100,000 peopleDawson County33.9Lake County: 31.2 per 100,000 peopleLake County31.2Lincoln County: 29.1 per 100,000 peopleLincoln County29.1Park County: 28.5 per 100,000 peoplePark County28.5Fergus County: 25.8 per 100,000 peopleFergus County25.8Custer County: 25.1 per 100,000 peopleCuster County25.1Ravalli County: 21.7 per 100,000 peopleRavalli County21.7Beaverhead County: 20.9 per 100,000 peopleBeaverhead County20.9Musselshell County: 20.4 per 100,000 peopleMusselshell County20.4Toole County: 20.1 per 100,000 peopleToole County20.1Flathead County: 18.4 per 100,000 peopleFlathead County18.4Carbon County: 18.3 per 100,000 peopleCarbon County18.3Yellowstone County: 17.3 per 100,000 peopleYellowstone County17.3Teton County: 15.9 per 100,000 peopleTeton County15.9Cascade County: 15.4 per 100,000 peopleCascade County15.4Missoula County: 15 per 100,000 peopleMissoula County15Lewis and Clark County: 12.4 per 100,000 peopleLewis and Clark County12.4Silver Bow County: 11.3 per 100,000 peopleSilver Bow County11.3Madison County: 11.2 per 100,000 peopleMadison County11.2Stillwater County: 11.1 per 100,000 peopleStillwater County11.1Gallatin County: 9.7 per 100,000 peopleGallatin County9.7Hill County: 6.2 per 100,000 peopleHill County6.2Blaine County: 0 per 100,000 peopleBlaine County0Broadwater County: 0 per 100,000 peopleBroadwater County0Carter County: 0 per 100,000 peopleCarter County0Daniels County: 0 per 100,000 peopleDaniels County0Deer Lodge County: 0 per 100,000 peopleDeer Lodge County0Fallon County: 0 per 100,000 peopleFallon County0Liberty County: 0 per 100,000 peopleLiberty County0McCone County: 0 per 100,000 peopleMcCone County0Petroleum County: 0 per 100,000 peoplePetroleum County0Prairie County: 0 per 100,000 peoplePrairie County0Richland County: 0 per 100,000 peopleRichland County0Wibaux County: 0 per 100,000 peopleWibaux County0Golden Valley County: 245.1 per 100,000 peopleGolden Valley County245.1Treasure County: 130.2 per 100,000 peopleTreasure County130.2Jefferson County: 104.2 per 100,000 peopleJefferson County104.2Meagher County: 101.9 per 100,000 peopleMeagher County101.9Judith Basin County: 98 per 100,000 peopleJudith Basin County98Phillips County: 95 per 100,000 peoplePhillips County95Granite County: 89.4 per 100,000 peopleGranite County89.4Pondera County: 83.1 per 100,000 peoplePondera County83.1Garfield County: 82.9 per 100,000 peopleGarfield County82.9Mineral County: 82.3 per 100,000 peopleMineral County82.3Powell County: 71.2 per 100,000 peoplePowell County71.2Big Horn County: 69.8 per 100,000 peopleBig Horn County69.8Powder River County: 58.6 per 100,000 peoplePowder River County58.6Sheridan County: 56 per 100,000 peopleSheridan County56Sweet Grass County: 54 per 100,000 peopleSweet Grass County54Valley County: 52.9 per 100,000 peopleValley County52.9Glacier County: 51 per 100,000 peopleGlacier County51Chouteau County: 50.5 per 100,000 peopleChouteau County50.5Wheatland County: 49 per 100,000 peopleWheatland County49Sanders County: 46.3 per 100,000 peopleSanders County46.3Rosebud County: 37.1 per 100,000 peopleRosebud County37.1Roosevelt County: 37.1 per 100,000 peopleRoosevelt County37.1Dawson County: 33.9 per 100,000 peopleDawson County33.9Lake County: 31.2 per 100,000 peopleLake County31.2Lincoln County: 29.1 per 100,000 peopleLincoln County29.1Park County: 28.5 per 100,000 peoplePark County28.5Fergus County: 25.8 per 100,000 peopleFergus County25.8Custer County: 25.1 per 100,000 peopleCuster County25.1Ravalli County: 21.7 per 100,000 peopleRavalli County21.7Beaverhead County: 20.9 per 100,000 peopleBeaverhead County20.9Musselshell County: 20.4 per 100,000 peopleMusselshell County20.4Toole County: 20.1 per 100,000 peopleToole County20.1Flathead County: 18.4 per 100,000 peopleFlathead County18.4Carbon County: 18.3 per 100,000 peopleCarbon County18.3Yellowstone County: 17.3 per 100,000 peopleYellowstone County17.3Teton County: 15.9 per 100,000 peopleTeton County15.9Cascade County: 15.4 per 100,000 peopleCascade County15.4Missoula County: 15 per 100,000 peopleMissoula County15Lewis and Clark County: 12.4 per 100,000 peopleLewis and Clark County12.4Silver Bow County: 11.3 per 100,000 peopleSilver Bow County11.3Madison County: 11.2 per 100,000 peopleMadison County11.2Stillwater County: 11.1 per 100,000 peopleStillwater County11.1Gallatin County: 9.7 per 100,000 peopleGallatin County9.7Hill County: 6.2 per 100,000 peopleHill County6.2Blaine County: 0 per 100,000 peopleBlaine County0Broadwater County: 0 per 100,000 peopleBroadwater County0Carter County: 0 per 100,000 peopleCarter County0Daniels County: 0 per 100,000 peopleDaniels County0Deer Lodge County: 0 per 100,000 peopleDeer Lodge County0Fallon County: 0 per 100,000 peopleFallon County0Liberty County: 0 per 100,000 peopleLiberty County0McCone County: 0 per 100,000 peopleMcCone County0Petroleum County: 0 per 100,000 peoplePetroleum County0Prairie County: 0 per 100,000 peoplePrairie County0Richland County: 0 per 100,000 peopleRichland 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

RankCounties2021
per 100,000 people
Change on 2020
1Golden Valley County245.1+1.5 pts
2Treasure County130.2+130.2 pts
3Jefferson County104.2+38.3 pts
4Meagher County101.9+101.9 pts
5Judith Basin County98-0.9 pts
6Phillips County95+95 pts
7Granite County89.4-61.8 pts
8Pondera County83.1+66.1 pts
9Garfield County82.9-2.5 pts
10Mineral County82.3+38.5 pts
11Powell County71.2-0.9 pts
12Big Horn County69.8-52.5 pts
13Powder River County58.6-0.5 pts
14Sheridan County56+56 pts
15Sweet Grass County54-27.7 pts
16Valley County52.9+26.4 pts
17Glacier County51+36.5 pts
18Chouteau County50.5-50.9 pts
19Wheatland County49+49 pts
20Sanders County46.3+22.3 pts
21Rosebud County37.1-71.2 pts
22Roosevelt County37.1+9.3 pts
23Dawson County33.9+22.7 pts
24Lake County31.2-0.8 pts
25Lincoln County29.1+24.1 pts
26Park County28.5-17.9 pts
27Fergus County25.8-0.3 pts
28Custer County25.1+16.7 pts
29Ravalli County21.7+14.9 pts
30Beaverhead County20.9-11.1 pts
31Musselshell County20.4-21.7 pts
32Toole County20.1+20.1 pts
33Flathead County18.4+0.3 pts
34Carbon County18.3-29.2 pts
35Yellowstone County17.3+7.6 pts
36Teton County15.9+15.9 pts
37Cascade County15.4-3.6 pts
38Missoula County15+1.5 pts
39Lewis and Clark County12.4+5.4 pts
40Silver Bow County11.3+5.6 pts
41Madison County11.2-0.4 pts
42Stillwater County11.1-66.7 pts
43Gallatin County9.7+4.7 pts
44Hill County6.20 pts
45Blaine County0-57.1 pts
45Broadwater County0-58.3 pts
45Carter County00 pts
45Daniels County0-60.5 pts
45Deer Lodge County0-31.8 pts
45Fallon County00 pts
45Liberty County00 pts
45McCone County0-115.7 pts
45Petroleum County00 pts
45Prairie County0-91.7 pts
45Richland County0-8.7 pts
45Wibaux 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, 2021) [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, 2021. 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, 2021. 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, 2021 [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_2021,
  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, 2021}},
  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=2021. 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, 2021
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=2021
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=2021.
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?

Golden Valley County, with 245.1 per 100,000 people in 2021, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Wibaux County, with 0 per 100,000 people in 2021.

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