These are the US states with the deadliest roads

December 20, 2021

Twenty-five states have at least one of the 100 most dangerous roads in the U.S. Seventeen of these roads are in Florida, 15 are in Texas and 11 are in California.

While these states appear most frequently on the list of roads where the most fatalities happened from 2015 to 2019 — the latest available data — ValuePenguin found that California roads are responsible for the largest share of deaths.

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Tie- 99. Missouri, I-55

County with most deaths: Jefferson
Deaths in county: 18
Total fatalities: 92
Fatal crashes: 85
Fatalities per 100 crashes: 108.2
% involving alcohol: 21%
% crashes in dark: 48%
% crashes in clear weather: 66%

Image Credit: Lana2011 / iStock.

Tie- 99. Virginia, US-29

County with most deaths: Pittsylvania
Deaths in county: 14
Total fatalities: 92
Fatal crashes: 86
Fatalities per 100 crashes: 107
% involving alcohol: 28%
% crashes in dark: 37%
% crashes in clear weather: 17%

Image Credit: zhaojiankang / iStock.

Tie-97. California, SR-4

County with most deaths: Contra Costa
Deaths in county: 39
Total fatalities: 93
Fatal crashes: 89
Fatalities per 100 crashes: 104.5
% involving alcohol: 29%
% crashes in dark: 49%
% crashes in clear weather: 76%

Image Credit: monkeybusinessimages / istockphoto.

Tie-97.Kentucky, I-64

County with most deaths: Jefferson
Deaths in county: 26
Total fatalities: 93
Fatal crashes: 75
Fatalities per 100 crashes: 124
% involving alcohol: 20%
% crashes in dark: 51%
% crashes in clear weather: 61%

Image Credit: DepositPhotos.com.

Tie-94. South Carolina, I-20

County with most deaths: Lexington
Deaths in county: 24
Total fatalities: 94
Fatal crashes: 82
Fatalities per 100 crashes: 114.6
% involving alcohol: 27%
% crashes in dark: 48%
% crashes in clear weather: 88%

Image Credit: Artem / istockphoto.

Tie-94. Georgia, I-285

County with most deaths: Fulton
Deaths in county: 41
Total fatalities: 94
Fatal crashes: 87
Fatalities per 100 crashes: 108
% involving alcohol: 28%
% crashes in dark: 69%
% crashes in clear weather: 78%

Image Credit: Sean Pavone / istockphoto.

Tie-94. Texas, US-87

County with most deaths: Lynn
Deaths in county: 10
Total fatalities: 94
Fatal crashes: 84
Fatalities per 100 crashes: 111.9
% involving alcohol: 24%
% crashes in dark: 42%
% crashes in clear weather: 69%

Image Credit: earleliason.

93. Texas, US-84

County with most deaths: Lubbock
Deaths in county: 14
Total fatalities: 95
Fatal crashes: 83
Fatalities per 100 crashes: 114.5
% involving alcohol: 17%
% crashes in dark: 52%
% crashes in clear weather: 67%

Image Credit: PorqueNoStudios /iStock.

92. Ohio, I-70

County with most deaths: Franklin
Deaths in county: 22
Total fatalities: 96
Fatal crashes: 79
Fatalities per 100 crashes: 121.5
% involving alcohol: 24%
% crashes in dark: 54%
% crashes in clear weather: 56%

Image Credit: PapaBear / istockphoto.

91. Iowa, I-80

County with most deaths: Cass
Deaths in county: 14
Total fatalities: 97
Fatal crashes: 77
Fatalities per 100 crashes: 126
% involving alcohol: 21%
% crashes in dark: 42%
% crashes in clear weather: 55%

Image Credit: Maksymowicz / istockphoto.

Tie-89. Illinois, I-55

County with most deaths: Will
Deaths in county: 28
Total fatalities: 98
Fatal crashes: 91
Fatalities per 100 crashes: 107.7
% involving alcohol: 33%
% crashes in dark: 52%
% crashes in clear weather: 84%

Image Credit: benkrut / istockphoto.

Tie-89. South Carolina, US-25

County with most deaths: Greenville
Deaths in county: 70
Total fatalities: 98
Fatal crashes: 88
Fatalities per 100 crashes: 111.4
% involving alcohol: 20%
% crashes in dark: 52%
% crashes in clear weather: 81%

Image Credit: DepositPhotos.com.

88. Kentucky, US-27

County with most deaths: Campbell
Deaths in county: 18
Total fatalities: 99
Fatal crashes: 87
Fatalities per 100 crashes: 113.8
% involving alcohol: 22%
% crashes in dark: 44%
% crashes in clear weather: 63%

Image Credit: Nyttend / Wikimedia Commons.

87. Ohio, I-75

County with most deaths: Montgomery
Deaths in county: 26
Total fatalities: 100
Fatal crashes: 90
Fatalities per 100 crashes: 111.1
% involving alcohol: 29%
% crashes in dark: 57%
% crashes in clear weather: 62%

Image Credit: Mike/Flickr.

Tie-84. California, SR-49

County with most deaths: Nevada
Deaths in county: 12
Total fatalities: 101
Fatal crashes: 69
Fatalities per 100 crashes: 146.4
% involving alcohol: 28%
% crashes in dark: 41%
% crashes in clear weather: 74%

Image Credit: bluejayphoto / istockphoto.

Tie-84. Kentucky, US-68

County with most deaths: Warren
Deaths in county: 13
Total fatalities: 101
Fatal crashes: 87
Fatalities per 100 crashes: 116.1
% involving alcohol: 21%
% crashes in dark: 31%
% crashes in clear weather: 62%

Image Credit: kellyvandellen / iStock.

Tie-84. Michigan, I-75

County with most deaths: Wayne
Deaths in county: 35
Total fatalities: 101
Fatal crashes: 95
Fatalities per 100 crashes: 106.3
% involving alcohol: 29%
% crashes in dark: 59%
% crashes in clear weather: 59%

Image Credit: TracieMichelle / istockphoto.

Tie-82. Arizona, US-60

County with most deaths: Maricopa
Deaths in county: 52
Total fatalities: 102
Fatal crashes: 85
Fatalities per 100 crashes: 120
% involving alcohol: 28%
% crashes in dark: 34%
% crashes in clear weather: 82%

Image Credit: miroslav_1 / istockphoto.

Tie-82. California, SR-74

County with most deaths: Riverside
Deaths in county: 95
Total fatalities: 102
Fatal crashes: 94
Fatalities per 100 crashes: 108.5
% involving alcohol: 21%
% crashes in dark: 43%
% crashes in clear weather: 80%

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81. North Carolina, US-64

County with most deaths: Nash
Deaths in county: 14
Total fatalities: 103
Fatal crashes: 109
Fatalities per 100 crashes: 94.5
% involving alcohol: 17%
% crashes in dark: 36%
% crashes in clear weather: 75%

Image Credit: wellesenterprises / istockphoto.

80. Ohio, I-71

County with most deaths: Franklin
Deaths in county: 35
Total fatalities: 105
Fatal crashes: 90
Fatalities per 100 crashes: 116.7
% involving alcohol: 38%
% crashes in dark: 57%
% crashes in clear weather: 59%

Image Credit: TomahawkBRAWL / Wikimedia Commons.

Tie- 77. Texas, US-83

County with most deaths: Webb
Deaths in county: 24
Total fatalities: 106
Fatal crashes: 76
Fatalities per 100 crashes: 139.5
% involving alcohol: 16%
% crashes in dark: 34%
% crashes in clear weather: 75%

Image Credit: miroslav_1 / istockphoto.

Tie-77. Idaho, I-84

County with most deaths: Jerome
Deaths in county: 24
Total fatalities: 106
Fatal crashes: 105
Fatalities per 100 crashes: 101
% involving alcohol: 21%
% crashes in dark: 40%
% crashes in clear weather: 69%

Image Credit: DepositPhotos.com.

Tie-77. Virginia, I-95

Deaths in county: 16
Total fatalities: 106
Fatal crashes: 107
Fatalities per 100 crashes: 99.1
% involving alcohol: 28%
% crashes in dark: 59%
% crashes in clear weather: 11%

Image Credit: Joshua Moore / iStock.

Tie-72. California, SR-91

County with most deaths: Orange
Deaths in county: 32
Total fatalities: 109
Fatal crashes: 85
Fatalities per 100 crashes: 128.2
% involving alcohol: 42%
% crashes in dark: 71%
% crashes in clear weather: 87%

Image Credit: choness / iStock.

Tie-72. Arizona, I-17

County with most deaths: Maricopa
Deaths in county: 45
Total fatalities: 109
Fatal crashes: 102
Fatalities per 100 crashes: 106.9
% involving alcohol: 29%
% crashes in dark: 48%
% crashes in clear weather: 84%

Image Credit: Ixnayonthetimmay.

Tie-72. Maryland, I-95

County with most deaths: Prince George’s
Deaths in county: 49
Total fatalities: 109
Fatal crashes: 97
Fatalities per 100 crashes: 112.4
% involving alcohol: 32%
% crashes in dark: 62%
% crashes in clear weather: 75%

Image Credit: James_Lane.

Tie-72. Idaho, US-95

County with most deaths: Kootenai
Deaths in county: 23
Total fatalities: 109
Fatal crashes: 93
Fatalities per 100 crashes: 117.2
% involving alcohol: 15%
% crashes in dark: 31%
% crashes in clear weather: 61%

Image Credit: Joecho-16 / iStock.

Tie-72. Virginia, I-81

County with most deaths: Frederick
Deaths in county: 17
Total fatalities: 109
Fatal crashes: 108
Fatalities per 100 crashes: 100.9
% involving alcohol: 14%
% crashes in dark: 34%
% crashes in clear weather: 8%

Image Credit: SeanPavonePhoto/ iStock.

Tie-70. Washington, I-5

County with most deaths: King
Deaths in county: 41
Total fatalities: 111
Fatal crashes: 160
Fatalities per 100 crashes: 69.4
% involving alcohol: 33%
% crashes in dark: 54%
% crashes in clear weather: 65%

Image Credit: DepositPhotos.com.

Tie-70. Texas, US-290

County with most deaths: Travis
Deaths in county: 30
Total fatalities: 111
Fatal crashes: 114
Fatalities per 100 crashes: 97.4
% involving alcohol: 25%
% crashes in dark: 54%
% crashes in clear weather: 55%

Image Credit: DepositPhotos.com.

Tie-68. South Carolina, US-76

County with most deaths: Richland
Deaths in county: 27
Total fatalities: 112
Fatal crashes: 104
Fatalities per 100 crashes: 107.7
% involving alcohol: 33%
% crashes in dark: 60%
% crashes in clear weather: 83%

Image Credit: AndreyKrav / istockphoto.

Tie-68. Louisiana, US-90

County with most deaths: Orleans
Deaths in county: 24
Total fatalities: 112
Fatal crashes: 101
Fatalities per 100 crashes: 110.9
% involving alcohol: 28%
% crashes in dark: 64%
% crashes in clear weather: 74%

Image Credit: Meinzahn / istockphoto.

67. Oklahoma, I-44

County with most deaths: Oklahoma
Deaths in county: 27
Total fatalities: 115
Fatal crashes: 115
Fatalities per 100 crashes: 100
% involving alcohol: 25%
% crashes in dark: 48%
% crashes in clear weather: 59%

Image Credit: Tiago_Fernandez.

66. Texas, US-190

County with most deaths: Polk
Deaths in county: 23
Total fatalities: 116
Fatal crashes: 89
Fatalities per 100 crashes: 130.3
% involving alcohol: 20%
% crashes in dark: 49%
% crashes in clear weather: 62%

Image Credit: Ingo Dörenberg / iStock.

65. Texas, US-90

County with most deaths: Bexar
Deaths in county: 25
Total fatalities: 119
Fatal crashes: 94
Fatalities per 100 crashes: 126.6
% involving alcohol: 27%
% crashes in dark: 50%
% crashes in clear weather: 67%

Image Credit: Nicholas Vettorel / iStock.

Tie- 63. Texas, US-287

County with most deaths: Tarrant
Deaths in county: 16
Total fatalities: 120
Fatal crashes: 110
Fatalities per 100 crashes: 109.1
% involving alcohol: 14%
% crashes in dark: 49%
% crashes in clear weather: 69%

Image Credit: E_Cotner / iStock.

Tie-63. Virginia, I-64

County with most deaths: Cabell
Deaths in county: 19
Total fatalities: 120
Fatal crashes: 112
Fatalities per 100 crashes: 107.1
% involving alcohol: 30%
% crashes in dark: 48%
% crashes in clear weather: 21%

Image Credit: Wilsilver77 / iStock.

Tie-61. Nebraska, I-80

County with most deaths: Dawson
Deaths in county: 17
Total fatalities: 121
Fatal crashes: 103
Fatalities per 100 crashes: 117.5
% involving alcohol: 17%
% crashes in dark: 32%
% crashes in clear weather: 77%

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Tie-61. Mississippi, US-49

County with most deaths: Harrison
Deaths in county: 29
Total fatalities: 121
Fatal crashes: 113
Fatalities per 100 crashes: 107.1
% involving alcohol: 14%
% crashes in dark: 49%
% crashes in clear weather: 66%

Image Credit: DepositPhotos.com.

60. Kentucky, US-60

County with most deaths: Fayette
Deaths in county: 19
Total fatalities: 123
Fatal crashes: 122
Fatalities per 100 crashes: 100.8
% involving alcohol: 20%
% crashes in dark: 37%
% crashes in clear weather: 57%

Image Credit: gguy44 / istockphoto.

Tie-58. North Carolina, I-85

County with most deaths: Mecklenburg
Deaths in county: 34
Total fatalities: 125
Fatal crashes: 132
Fatalities per 100 crashes: 94.7
% involving alcohol: 25%
% crashes in dark: 49%
% crashes in clear weather: 80%

Image Credit: SeanPavonePhoto / istockphoto.

Tie- 58. Georgia, I-85

County with most deaths: Fulton
Deaths in county: 28
Total fatalities: 125
Fatal crashes: 118
Fatalities per 100 crashes: 105.9
% involving alcohol: 16%
% crashes in dark: 62%
% crashes in clear weather: 66%

Image Credit: Pixabay.com.

Tie- 55.South Carolina, I-95

County with most deaths: Clarendon
Deaths in county: 33
Total fatalities: 128
Fatal crashes: 122
Fatalities per 100 crashes: 104.9
% involving alcohol: 15%
% crashes in dark: 42%
% crashes in clear weather: 81%

Image Credit: Kruck20 / istockphoto.

Tie-55. Virginia, US-58

County with most deaths: Suffolk
Deaths in county: 19
Total fatalities: 128
Fatal crashes: 116
Fatalities per 100 crashes: 110.3
% involving alcohol: 20%
% crashes in dark: 34%
% crashes in clear weather: 19%

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Tie- 55. Virginia, US-460

County with most deaths: Dinwiddie
Deaths in county: 12
Total fatalities: 128
Fatal crashes: 107
Fatalities per 100 crashes: 119.6
% involving alcohol: 20%
% crashes in dark: 49%
% crashes in clear weather: 11%

Image Credit: Feverpitched / istockphoto.

54. New Mexico, I-25

County with most deaths: Bernalillo
Deaths in county: 20
Total fatalities: 129
Fatal crashes: 121
Fatalities per 100 crashes: 106.6
% involving alcohol: 23%
% crashes in dark: 47%
% crashes in clear weather: 89%

Image Credit: DepositPhotos.com.

53. Florida, SR-50

County with most deaths: Orange
Deaths in county: 85
Total fatalities: 130
Fatal crashes: 113
Fatalities per 100 crashes: 115
% involving alcohol: 21%
% crashes in dark: 57%
% crashes in clear weather: 86%

Image Credit: krblokhin / istockphoto.

52. Texas, I-30

County with most deaths: Dallas
Deaths in county: 40
Total fatalities: 132
Fatal crashes: 133
Fatalities per 100 crashes: 99.2
% involving alcohol: 28%
% crashes in dark: 58%
% crashes in clear weather: 71%

Image Credit: RoschetzkyIstockPhoto / istockphoto.

51. Tennessee, I-24

County with most deaths: Shelby
Deaths in county: 35
Total fatalities: 133
Fatal crashes: 124
Fatalities per 100 crashes: 107.3
% involving alcohol: 23%
% crashes in dark: 58%
% crashes in clear weather: 75%

Image Credit: Swarmcatcher.

Tie-49. Arizona, I-40

County with most deaths: Coconino
Deaths in county: 48
Total fatalities: 134
Fatal crashes: 112
Fatalities per 100 crashes: 119.6
% involving alcohol: 15%
% crashes in dark: 44%
% crashes in clear weather: 67%

Image Credit: jose1983 / iStock.

Tie-49. Missouri, I-44

County with most deaths: Phelps
Deaths in county: 25
Total fatalities: 134
Fatal crashes: 116
Fatalities per 100 crashes: 115.5
% involving alcohol: 20%
% crashes in dark: 50%
% crashes in clear weather: 62%

Image Credit: Paul Sableman / iStock.

48. Texas, SR-6

County with most deaths: Harris
Deaths in county: 27
Total fatalities: 136
Fatal crashes: 126
Fatalities per 100 crashes: 107.9
% involving alcohol: 15%
% crashes in dark: 57%
% crashes in clear weather: 72%

Image Credit: istockphoto.

47. Colorado, I-70

County with most deaths: Garfield
Deaths in county: 29
Total fatalities: 137
Fatal crashes: 129
Fatalities per 100 crashes: 106.2
% involving alcohol: 32%
% crashes in dark: 47%
% crashes in clear weather: 29%

Image Credit: haveseen / istockphoto.

46. Alabama, I-59

County with most deaths: Jefferson
Deaths in county: 50
Total fatalities: 138
Fatal crashes: 127
Fatalities per 100 crashes: 108.7
% involving alcohol: 10%
% crashes in dark: 46%
% crashes in clear weather: 69%

Image Credit: DepositPhotos.com.

45. Oklahoma, I-40

County with most deaths: Canadian
Deaths in county: 26
Total fatalities: 139
Fatal crashes: 111
Fatalities per 100 crashes: 125.2
% involving alcohol: 14%
% crashes in dark: 47%
% crashes in clear weather: 59%

Image Credit: istockphoto.

44. Florida, US-92

County with most deaths: Hillsborough
Deaths in county: 45
Total fatalities: 143
Fatal crashes: 133
Fatalities per 100 crashes: 107.5
% involving alcohol: 17%
% crashes in dark: 63%
% crashes in clear weather: 81%

Image Credit: DepositPhotos.com.

43. Michigan, I-94

County with most deaths: Wayne
Deaths in county: 47
Total fatalities: 149
Fatal crashes: 133
Fatalities per 100 crashes: 112
% involving alcohol: 23%
% crashes in dark: 59%
% crashes in clear weather: 51%

Image Credit: Helena Mettavainio / istockphoto.

Tie- 41. South Carolina, I-26

County with most deaths: Spartanburg
Deaths in county: 32
Total fatalities: 151
Fatal crashes: 151
Fatalities per 100 crashes: 100
% involving alcohol: 26%
% crashes in dark: 50%
% crashes in clear weather: 87%

Image Credit: Kruck20 // istockphoto.

Tie- 41. Florida, SR-A1A

County with most deaths: Brevard
Deaths in county: 26
Total fatalities: 151
Fatal crashes: 135
Fatalities per 100 crashes: 111.9
% involving alcohol: 24%
% crashes in dark: 52%
% crashes in clear weather: 76%

Image Credit: SeanPavonePhoto/ iStock.

40. Texas, US-281

County with most deaths: Bexar
Deaths in county: 22
Total fatalities: 152
Fatal crashes: 130
Fatalities per 100 crashes: 116.9
% involving alcohol: 23%
% crashes in dark: 45%
% crashes in clear weather: 68%

Image Credit: Getty.

39. Utah, I-15

County with most deaths: Utah
Deaths in county: 22
Total fatalities: 153
Fatal crashes: 129
Fatalities per 100 crashes: 118.6
% involving alcohol: 12%
% crashes in dark: 37%
% crashes in clear weather: 60%

Image Credit: ” 4kodiak”.

Tie- 37. Georgia, I-20

County with most deaths: DeKalb
Deaths in county: 21
Total fatalities: 154
Fatal crashes: 142
Fatalities per 100 crashes: 108.5
% involving alcohol: 21%
% crashes in dark: 56%
% crashes in clear weather: 70%

Image Credit: DepositPhotos.com.

Tie- 37. Colorado, I-25

County with most deaths: El Paso
Deaths in county: 41
Total fatalities: 154
Fatal crashes: 153
Fatalities per 100 crashes: 100.7
% involving alcohol: 32%
% crashes in dark: 47%
% crashes in clear weather: 27%

Image Credit: Jacob Boomsma / istockphoto.

36. Mississippi, I-55

County with most deaths: Hinds
Deaths in county: 24
Total fatalities: 158
Fatal crashes: 135
Fatalities per 100 crashes: 117
% involving alcohol: 15%
% crashes in dark: 50%
% crashes in clear weather: 81%

Image Credit: Feverpitched / istockphoto.

35. Florida, SR-60

County with most deaths: Hillsborough
Deaths in county: 61
Total fatalities: 163
Fatal crashes: 159
Fatalities per 100 crashes: 102.5
% involving alcohol: 23%
% crashes in dark: 62%
% crashes in clear weather: 78%

Image Credit: RAUL RODRIGUEZ/ iStock.

34. North Carolina, I-40

County with most deaths: Guilford
Deaths in county: 23
Total fatalities: 165
Fatal crashes: 157
Fatalities per 100 crashes: 105.1
% involving alcohol: 22%
% crashes in dark: 52%
% crashes in clear weather: 73%

Image Credit: DepositPhotos.com.

33. Florida, I-4

County with most deaths: Volusia
Deaths in county: 39
Total fatalities: 167
Fatal crashes: 156
Fatalities per 100 crashes: 107.1
% involving alcohol: 27%
% crashes in dark: 59%
% crashes in clear weather: 71%

Image Credit: DepositPhotos.com.

32. California, SR-1

County with most deaths: Merced
Deaths in county: 47
Total fatalities: 171
Fatal crashes: 151
Fatalities per 100 crashes: 113.2
% involving alcohol: 25%
% crashes in dark: 53%
% crashes in clear weather: 75%

Image Credit: bluejayphoto / istockphoto.

31. New Mexico, I-40

County with most deaths: McKinley
Deaths in county: 44
Total fatalities: 184
Fatal crashes: 147
Fatalities per 100 crashes: 125.2
% involving alcohol: 14%
% crashes in dark: 37%
% crashes in clear weather: 86%

Image Credit: Jim Ekstrand / istockphoto.

30. Texas, US-59

County with most deaths: Victoria
Deaths in county: 25
Total fatalities: 185
Fatal crashes: 162
Fatalities per 100 crashes: 114.2
% involving alcohol: 16%
% crashes in dark: 47%
% crashes in clear weather: 65%

Image Credit: DepositPhotos.

29. Missouri, I-70

County with most deaths: Jackson
Deaths in county: 39
Total fatalities: 187
Fatal crashes: 158
Fatalities per 100 crashes: 118.4
% involving alcohol: 27%
% crashes in dark: 62%
% crashes in clear weather: 64%

Image Credit: Adam Moss / Wiki Commons.

28. Florida, US-90

County with most deaths: Duval
Deaths in county: 65
Total fatalities: 209
Fatal crashes: 193
Fatalities per 100 crashes: 108.3
% involving alcohol: 20%
% crashes in dark: 57%
% crashes in clear weather: 69%

Image Credit: Alessandro Biascioli/ iStock.

27. Florida, I-10

County with most deaths: Suwannee
Deaths in county: 23
Total fatalities: 210
Fatal crashes: 199
Fatalities per 100 crashes: 105.5
% involving alcohol: 18%
% crashes in dark: 47%
% crashes in clear weather: 57%

Image Credit: sorsillo / iStock.

26. Florida, US-301

County with most deaths: Hillsborough
Deaths in county: 70
Total fatalities: 211
Fatal crashes: 195
Fatalities per 100 crashes: 108.2
% involving alcohol: 23%
% crashes in dark: 50%
% crashes in clear weather: 71%

Image Credit: marchello74 / iStock.

25. Louisiana, I-10

County with most deaths: Orleans
Deaths in county: 36
Total fatalities: 217
Fatal crashes: 214
Fatalities per 100 crashes: 101.4
% involving alcohol: 31%
% crashes in dark: 58%
% crashes in clear weather: 76%

Image Credit: DepositPhotos.com.

24. California, I-80

County with most deaths: Solano
Deaths in county: 56
Total fatalities: 220
Fatal crashes: 187
Fatalities per 100 crashes: 117.6
% involving alcohol: 19%
% crashes in dark: 62%
% crashes in clear weather: 76%

Image Credit: nata_rass/ iStock.

23. Texas, I-45

County with most deaths: Harris
Deaths in county: 55
Total fatalities: 229
Fatal crashes: 208
Fatalities per 100 crashes: 110.1
% involving alcohol: 25%
% crashes in dark: 63%
% crashes in clear weather: 76%

Image Credit: PhotoSparks / iStock.

22. California, I-10

County with most deaths: Riverside
Deaths in county: 120
Total fatalities: 240
Fatal crashes: 217
Fatalities per 100 crashes: 110.6
% involving alcohol: 22%
% crashes in dark: 65%
% crashes in clear weather: 84%

Image Credit: MasaoTaira / iStock.

Tie- 20. South Carolina, US-17

County with most deaths: Horry
Deaths in county: 75
Total fatalities: 241
Fatal crashes: 218
Fatalities per 100 crashes: 110.6
% involving alcohol: 23%
% crashes in dark: 56%
% crashes in clear weather: 83%

Image Credit: Artem / istockphoto.

Tie- 20. Alabama, I-65

County with most deaths: Jefferson
Deaths in county: 32
Total fatalities: 241
Fatal crashes: 210
Fatalities per 100 crashes: 114.8
% involving alcohol: 20%
% crashes in dark: 53%
% crashes in clear weather: 70%

Image Credit: toddmedia / istockphoto.

19. Florida, US-441

County with most deaths: Broward
Deaths in county: 44
Total fatalities: 248
Fatal crashes: 238
Fatalities per 100 crashes: 104.2
% involving alcohol: 15%
% crashes in dark: 61%
% crashes in clear weather: 80%

Image Credit: Excel23 / Wiki Commons.

18. Arizona, I-10

County with most deaths: Maricopa
Deaths in county: 106
Total fatalities: 250
Fatal crashes: 241
Fatalities per 100 crashes: 103.7
% involving alcohol: 18%
% crashes in dark: 51%
% crashes in clear weather: 87%

Image Credit: ClaudioVentrella / iStock.

17. Georgia, I-75

County with most deaths: Henry
Deaths in county: 35
Total fatalities: 255
Fatal crashes: 246
Fatalities per 100 crashes: 103.7
% involving alcohol: 13%
% crashes in dark: 56%
% crashes in clear weather: 71%

Image Credit: gguy44 / iStock.

16. Florida, US-17

County with most deaths: Putnam
Deaths in county: 43
Total fatalities: 263
Fatal crashes: 238
Fatalities per 100 crashes: 110.5
% involving alcohol: 21%
% crashes in dark: 63%
% crashes in clear weather: 77%

Image Credit: marchello74 / iStock.

15. Florida, US-98

County with most deaths: Polk
Deaths in county: 47
Total fatalities: 267
Fatal crashes: 230
Fatalities per 100 crashes: 116.1
% involving alcohol: 24%
% crashes in dark: 57%
% crashes in clear weather: 70%

Image Credit: krblokhin / istockphoto.

14. Tennessee, I-40

County with most deaths: Shelby
Deaths in county: 37
Total fatalities: 273
Fatal crashes: 233
Fatalities per 100 crashes: 117.2
% involving alcohol: 20%
% crashes in dark: 49%
% crashes in clear weather: 77%

Image Credit: istockphoto.

13. California, I-15

County with most deaths: San Berardino
Deaths in county: 188
Total fatalities: 306
Fatal crashes: 273
Fatalities per 100 crashes: 112.1
% involving alcohol: 30%
% crashes in dark: 62%
% crashes in clear weather: 81%

Image Credit: DepositPhotos.com.

12. Florida, US-19

County with most deaths: Pinellas
Deaths in county: 122
Total fatalities: 319
Fatal crashes: 302
Fatalities per 100 crashes: 105.6
% involving alcohol: 16%
% crashes in dark: 60%
% crashes in clear weather: 81%

Image Credit: istockphoto.

11. California, SR-99

County with most deaths: Kern
Deaths in county: 54
Total fatalities: 350
Fatal crashes: 304
Fatalities per 100 crashes: 115.1
% involving alcohol: 30%
% crashes in dark: 63%
% crashes in clear weather: 79%

Image Credit: disqis / istockphoto.

10. Florida, US-27

County with most deaths: Polk
Deaths in county: 64
Total fatalities: 358
Fatal crashes: 306
Fatalities per 100 crashes: 117
% involving alcohol: 21%
% crashes in dark: 50%
% crashes in clear weather: 74%

Image Credit: kellyvandellen / iStock.

9. Florida, I-75

County with most deaths: Hillsborough
Deaths in county: 60
Total fatalities: 404
Fatal crashes: 354
Fatalities per 100 crashes: 114.1
% involving alcohol: 25%
% crashes in dark: 55%
% crashes in clear weather: 64%

Image Credit: eyfoto / iStock.

8. Texas, I-20

County with most deaths: Tarrant
Deaths in county: 39
Total fatalities: 412
Fatal crashes: 390
Fatalities per 100 crashes: 105.6
% involving alcohol: 18%
% crashes in dark: 53%
% crashes in clear weather: 73%

Image Credit: joebelanger / iStock.

7. Florida, US-41

County with most deaths: Hillsborough
Deaths in county: 80
Total fatalities: 432
Fatal crashes: 413
Fatalities per 100 crashes: 104.6
% involving alcohol: 19%
% crashes in dark: 51%
% crashes in clear weather: 79%

Image Credit: istockphoto/Kasra Keighobady.

6. Texas, I-35

County with most deaths: Travis
Deaths in county: 84
Total fatalities: 442
Fatal crashes: 410
Fatalities per 100 crashes: 107.8
% involving alcohol: 23%
% crashes in dark: 68%
% crashes in clear weather: 73%

Image Credit: Tiago_Fernandez / iStock.

5. Florida, I-95

County with most deaths: Palm Beach
Deaths in county: 77
Total fatalities: 463
Fatal crashes: 439
Fatalities per 100 crashes: 105.5
% involving alcohol: 25%
% crashes in dark: 59%
% crashes in clear weather: 64%

Image Credit: typhoonski / iStock.

4. Texas, I-10

County with most deaths: El Paso
Deaths in county: 59
Total fatalities: 492
Fatal crashes: 457
Fatalities per 100 crashes: 107.7
% involving alcohol: 20%
% crashes in dark: 59%
% crashes in clear weather: 73%

Image Credit: RoschetzkyIstockPhoto/ iStock.

3. California, US-101

County with most deaths: Santa Clara
Deaths in county: 78
Total fatalities: 493
Fatal crashes: 437
Fatalities per 100 crashes: 112.8
% involving alcohol: 28%
% crashes in dark: 59%
% crashes in clear weather: 68%

Image Credit: lazyday / iStock.

2. Florida, US-1

County with most deaths: Brevard
Deaths in county: 87
Total fatalities: 570
Fatal crashes: 534
Fatalities per 100 crashes: 106.7
% involving alcohol: 18%
% crashes in dark: 56%
% crashes in clear weather: 75%

Image Credit: Otto Streinesberger / iStock.

1. California, I-5

County with most deaths: San Diego
Deaths in county: 110
Total fatalities: 584
Fatal crashes: 544
Fatalities per 100 crashes: 107.4
% involving alcohol: 27%
% crashes in dark: 62%
% crashes in clear weather: 79%

Image Credit: bluejayphoto/ iStock.

Methodology

ValuePenguin analyzed the National Traffic and Highway Safety Administration’s Fatality Analysis Reporting System (FARS) records of fatal automobile accidents to determine the most dangerous roads.

Researchers examined data from 2015 to 2019 — the most recently available. As single roadways traverse multiple states, ValuePenguin’s study identifies the particular state along with a given roadway where traffic deaths occurred.

Researchers also found the share of fatal accidents that occurred when .001 g/dL or more alcohol (FARS’ threshold for a driver’s inclusion as a “drinking driver”) was detected in a driver’s blood. Additionally, FARS’ measure of “clear” driving conditions is contrasted against several others, including: