Counties in Montana by traffic fatality rate

Golden Valley County had the highest traffic fatality rate of 56 counties in 2020, at 243.6 per 100,000 people. Wibaux County had the lowest, at 0 per 100,000 people. The median was 21.5 per 100,000 people and the figure for Montana was 19.6 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Median21.556 counties
Montana19.6History

Map of counties, 2020

Beaverhead County: 32 per 100,000 peopleBig Horn County: 122.3 per 100,000 peopleBlaine County: 57.1 per 100,000 peopleBroadwater County: 58.3 per 100,000 peopleCarbon County: 47.6 per 100,000 peopleCarter County: 0 per 100,000 peopleCascade County: 19 per 100,000 peopleChouteau County: 101.4 per 100,000 peopleCuster County: 8.4 per 100,000 peopleDaniels County: 60.5 per 100,000 peopleDawson County: 11.2 per 100,000 peopleDeer Lodge County: 31.8 per 100,000 peopleFallon County: 0 per 100,000 peopleFergus County: 26.2 per 100,000 peopleFlathead County: 18.1 per 100,000 peopleGallatin County: 5 per 100,000 peopleGarfield County: 85.4 per 100,000 peopleGlacier County: 14.6 per 100,000 peopleGolden Valley County: 243.6 per 100,000 peopleGranite County: 151.2 per 100,000 peopleHill County: 6.2 per 100,000 peopleJefferson County: 65.9 per 100,000 peopleJudith Basin County: 98.9 per 100,000 peopleLake County: 32 per 100,000 peopleLewis and Clark County: 7 per 100,000 peopleLiberty County: 0 per 100,000 peopleLincoln County: 5.1 per 100,000 peopleMcCone County: 115.7 per 100,000 peopleMadison County: 11.5 per 100,000 peopleMeagher County: 0 per 100,000 peopleMineral County: 43.8 per 100,000 peopleMissoula County: 13.5 per 100,000 peopleMusselshell County: 42.1 per 100,000 peoplePark County: 46.4 per 100,000 peoplePetroleum County: 0 per 100,000 peoplePhillips County: 0 per 100,000 peoplePondera County: 17 per 100,000 peoplePowder River County: 59.1 per 100,000 peoplePowell County: 72.1 per 100,000 peoplePrairie County: 91.7 per 100,000 peopleRavalli County: 6.8 per 100,000 peopleRichland County: 8.7 per 100,000 peopleRoosevelt County: 27.8 per 100,000 peopleRosebud County: 108.4 per 100,000 peopleSanders County: 24.1 per 100,000 peopleSheridan County: 0 per 100,000 peopleSilver Bow County: 5.7 per 100,000 peopleStillwater County: 77.8 per 100,000 peopleSweet Grass County: 81.7 per 100,000 peopleTeton County: 0 per 100,000 peopleToole County: 0 per 100,000 peopleTreasure County: 0 per 100,000 peopleValley County: 26.5 per 100,000 peopleWheatland County: 0 per 100,000 peopleWibaux County: 0 per 100,000 peopleYellowstone County: 9.7 per 100,000 people
  • Under 9
  • 9 to 22
  • 22 to 46
  • 46 to 81
  • 81 and over
per 100,000 people, 2020. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2020

Golden Valley County: 243.6 per 100,000 peopleGolden Valley County243.6Granite County: 151.2 per 100,000 peopleGranite County151.2Big Horn County: 122.3 per 100,000 peopleBig Horn County122.3McCone County: 115.7 per 100,000 peopleMcCone County115.7Rosebud County: 108.4 per 100,000 peopleRosebud County108.4Chouteau County: 101.4 per 100,000 peopleChouteau County101.4Judith Basin County: 98.9 per 100,000 peopleJudith Basin County98.9Prairie County: 91.7 per 100,000 peoplePrairie County91.7Garfield County: 85.4 per 100,000 peopleGarfield County85.4Sweet Grass County: 81.7 per 100,000 peopleSweet Grass County81.7Stillwater County: 77.8 per 100,000 peopleStillwater County77.8Powell County: 72.1 per 100,000 peoplePowell County72.1Jefferson County: 65.9 per 100,000 peopleJefferson County65.9Daniels County: 60.5 per 100,000 peopleDaniels County60.5Powder River County: 59.1 per 100,000 peoplePowder River County59.1Broadwater County: 58.3 per 100,000 peopleBroadwater County58.3Blaine County: 57.1 per 100,000 peopleBlaine County57.1Carbon County: 47.6 per 100,000 peopleCarbon County47.6Park County: 46.4 per 100,000 peoplePark County46.4Mineral County: 43.8 per 100,000 peopleMineral County43.8Musselshell County: 42.1 per 100,000 peopleMusselshell County42.1Lake County: 32 per 100,000 peopleLake County32Beaverhead County: 32 per 100,000 peopleBeaverhead County32Deer Lodge County: 31.8 per 100,000 peopleDeer Lodge County31.8Roosevelt County: 27.8 per 100,000 peopleRoosevelt County27.8Valley County: 26.5 per 100,000 peopleValley County26.5Fergus County: 26.2 per 100,000 peopleFergus County26.2Sanders County: 24.1 per 100,000 peopleSanders County24.1Cascade County: 19 per 100,000 peopleCascade County19Flathead County: 18.1 per 100,000 peopleFlathead County18.1Pondera County: 17 per 100,000 peoplePondera County17Glacier County: 14.6 per 100,000 peopleGlacier County14.6Missoula County: 13.5 per 100,000 peopleMissoula County13.5Madison County: 11.5 per 100,000 peopleMadison County11.5Dawson County: 11.2 per 100,000 peopleDawson County11.2Yellowstone County: 9.7 per 100,000 peopleYellowstone County9.7Richland County: 8.7 per 100,000 peopleRichland County8.7Custer County: 8.4 per 100,000 peopleCuster County8.4Lewis and Clark County: 7 per 100,000 peopleLewis and Clark County7Ravalli County: 6.8 per 100,000 peopleRavalli County6.8Hill County: 6.2 per 100,000 peopleHill County6.2Silver Bow County: 5.7 per 100,000 peopleSilver Bow County5.7Lincoln County: 5.1 per 100,000 peopleLincoln County5.1Gallatin County: 5 per 100,000 peopleGallatin County5Carter County: 0 per 100,000 peopleCarter County0Fallon County: 0 per 100,000 peopleFallon County0Liberty County: 0 per 100,000 peopleLiberty County0Meagher County: 0 per 100,000 peopleMeagher County0Petroleum County: 0 per 100,000 peoplePetroleum County0Phillips County: 0 per 100,000 peoplePhillips County0Sheridan County: 0 per 100,000 peopleSheridan County0Teton County: 0 per 100,000 peopleTeton County0Toole County: 0 per 100,000 peopleToole County0Treasure County: 0 per 100,000 peopleTreasure County0Wheatland County: 0 per 100,000 peopleWheatland County0Wibaux County: 0 per 100,000 peopleWibaux County0Golden Valley County: 243.6 per 100,000 peopleGolden Valley County243.6Granite County: 151.2 per 100,000 peopleGranite County151.2Big Horn County: 122.3 per 100,000 peopleBig Horn County122.3McCone County: 115.7 per 100,000 peopleMcCone County115.7Rosebud County: 108.4 per 100,000 peopleRosebud County108.4Chouteau County: 101.4 per 100,000 peopleChouteau County101.4Judith Basin County: 98.9 per 100,000 peopleJudith Basin County98.9Prairie County: 91.7 per 100,000 peoplePrairie County91.7Garfield County: 85.4 per 100,000 peopleGarfield County85.4Sweet Grass County: 81.7 per 100,000 peopleSweet Grass County81.7Stillwater County: 77.8 per 100,000 peopleStillwater County77.8Powell County: 72.1 per 100,000 peoplePowell County72.1Jefferson County: 65.9 per 100,000 peopleJefferson County65.9Daniels County: 60.5 per 100,000 peopleDaniels County60.5Powder River County: 59.1 per 100,000 peoplePowder River County59.1Broadwater County: 58.3 per 100,000 peopleBroadwater County58.3Blaine County: 57.1 per 100,000 peopleBlaine County57.1Carbon County: 47.6 per 100,000 peopleCarbon County47.6Park County: 46.4 per 100,000 peoplePark County46.4Mineral County: 43.8 per 100,000 peopleMineral County43.8Musselshell County: 42.1 per 100,000 peopleMusselshell County42.1Lake County: 32 per 100,000 peopleLake County32Beaverhead County: 32 per 100,000 peopleBeaverhead County32Deer Lodge County: 31.8 per 100,000 peopleDeer Lodge County31.8Roosevelt County: 27.8 per 100,000 peopleRoosevelt County27.8Valley County: 26.5 per 100,000 peopleValley County26.5Fergus County: 26.2 per 100,000 peopleFergus County26.2Sanders County: 24.1 per 100,000 peopleSanders County24.1Cascade County: 19 per 100,000 peopleCascade County19Flathead County: 18.1 per 100,000 peopleFlathead County18.1Pondera County: 17 per 100,000 peoplePondera County17Glacier County: 14.6 per 100,000 peopleGlacier County14.6Missoula County: 13.5 per 100,000 peopleMissoula County13.5Madison County: 11.5 per 100,000 peopleMadison County11.5Dawson County: 11.2 per 100,000 peopleDawson County11.2Yellowstone County: 9.7 per 100,000 peopleYellowstone County9.7Richland County: 8.7 per 100,000 peopleRichland County8.7Custer County: 8.4 per 100,000 peopleCuster County8.4Lewis and Clark County: 7 per 100,000 peopleLewis and Clark County7Ravalli County: 6.8 per 100,000 peopleRavalli County6.8Hill County: 6.2 per 100,000 peopleHill County6.2Silver Bow County: 5.7 per 100,000 peopleSilver Bow County5.7Lincoln County: 5.1 per 100,000 peopleLincoln County5.1Gallatin County: 5 per 100,000 peopleGallatin County5Carter County: 0 per 100,000 peopleCarter County0Fallon County: 0 per 100,000 peopleFallon County0Liberty County: 0 per 100,000 peopleLiberty County0Meagher County: 0 per 100,000 peopleMeagher County0Petroleum County: 0 per 100,000 peoplePetroleum County0Phillips County: 0 per 100,000 peoplePhillips County0Sheridan County: 0 per 100,000 peopleSheridan County0Teton County: 0 per 100,000 peopleTeton County0Toole County: 0 per 100,000 peopleToole County0Treasure County: 0 per 100,000 peopleTreasure 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

RankCounties2020
per 100,000 people
Change on 2019
1Golden Valley County243.6+243.6 pts
2Granite County151.2+90.8 pts
3Big Horn County122.3+1.4 pts
4McCone County115.7-1.1 pts
5Rosebud County108.4+72.9 pts
6Chouteau County101.4+84.3 pts
7Judith Basin County98.9+49.5 pts
8Prairie County91.7+91.7 pts
9Garfield County85.4-84 pts
10Sweet Grass County81.7+54.8 pts
11Stillwater County77.8+77.8 pts
12Powell County72.1+43.4 pts
13Jefferson County65.9+40.8 pts
14Daniels County60.5+60.5 pts
15Powder River County59.1+59.1 pts
16Broadwater County58.3+43 pts
17Blaine County57.1+43 pts
18Carbon County47.6+18.5 pts
19Park County46.4+17.1 pts
20Mineral County43.8-91.4 pts
21Musselshell County42.1+42.1 pts
22Lake County32-0.5 pts
23Beaverhead County32-0.1 pts
24Deer Lodge County31.8+10.5 pts
25Roosevelt County27.8-55 pts
26Valley County26.5+13.3 pts
27Fergus County26.2+26.2 pts
28Sanders County24.1-16.8 pts
29Cascade County19+7.1 pts
30Flathead County18.1+3.5 pts
31Pondera County17-16.6 pts
32Glacier County14.6-7.2 pts
33Missoula County13.5+5.8 pts
34Madison County11.5-0.2 pts
35Dawson County11.2-11.1 pts
36Yellowstone County9.7-1.3 pts
37Richland County8.7-8.9 pts
38Custer County8.4-8.5 pts
39Lewis and Clark County7-1.5 pts
40Ravalli County6.8-4.7 pts
41Hill County6.2-12.1 pts
42Silver Bow County5.7-11.5 pts
43Lincoln County5.1-20.5 pts
44Gallatin County5-1 pts
45Carter County0-71.4 pts
45Fallon County00 pts
45Liberty County00 pts
45Meagher County00 pts
45Petroleum County00 pts
45Phillips County0-94.5 pts
45Sheridan County0-28 pts
45Teton County0-16.2 pts
45Toole County00 pts
45Treasure County00 pts
45Wheatland County00 pts
45Wibaux County0-104.8 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, 2020) [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, 2020. 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, 2020. 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, 2020 [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_2020,
  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, 2020}},
  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=2020. 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, 2020
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=2020
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=2020.
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 243.6 per 100,000 people in 2020, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Wibaux County, with 0 per 100,000 people in 2020.

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