Fatal crash profile · County
Traffic deaths in Jefferson County, Wisconsin
County in Wisconsin · United States
- Deaths, 2024
- 12
- Fatal crashes
- 12
- Population
- 86.5K
In 2024, 12 people died in 12 fatal crashes in Jefferson County, Wisconsin. That was 20.0% more than in 2023 (10) and the most in any year since 2020. The death rate was 13.9 per 100,000 residents, compared with 10.0 in Wisconsin and 11.5 in the United States. Jefferson County had the 10th most traffic deaths among Wisconsin's counties. Between 2020 and 2024, 50 people died, an average of 10 a year. That rate is based on fewer than 20 deaths, so it can swing a lot from year to year. Pedestrians accounted for 8% of deaths, and 8% of fatal crashes were speeding-related.
Deaths
Traffic deaths
13.9
deaths per 100,000 residents in 2024
- About 1.4 times the rate in Wisconsin: 10.0
- About 1.2 times the rate in the United States: 11.5
11.6
average deaths per 100,000 residents a year, 2020–2024
- About 1.1 times the average in Wisconsin: 10.2
- About the same as the average in the United States: 12.3
+20%
change in deaths from 2023 to 2024
10 deaths in 2023, 12 in 2024
- Wisconsin: +2%
- The United States: -4%
| Category | Deaths | Fatal crashes |
|---|---|---|
| 2020 | 9 | 8 |
| 2021 | 11 | 8 |
| 2022 | 8 | 8 |
| 2023 | 10 | 9 |
| 2024 | 12 | 12 |
People who died within 30 days of a crash. A fatal crash can kill more than one person.
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| Category | Deaths per 100,000 |
|---|---|
| 2020 | 10.4 |
| 2021 | 12.8 |
| 2022 | 9.3 |
| 2023 | 11.6 |
| 2024 | 13.9 |
Uses Census population estimates, available from 2000.
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Road users
Who died
8%
of deaths were pedestrians
- About 85 percent of the share in Wisconsin: 10%
- About half the share in the United States: 18%
| Category | Deaths |
|---|---|
| Vehicle occupants and others | 8 |
| Pedestrians | 1 |
| Motorcyclists | 3 |
| Cyclists | 0 |
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| Type | Deaths | Share in Jefferson County | Share in Wisconsin |
|---|---|---|---|
| Pedestrians | 1 | 8% | 10% |
| Motorcyclists | 3 | 25% | 18% |
| Cyclists | 0 | 0% | 1% |
| Alcohol-impaired driving crashes | 2 | 17% | 33% |
| Speeding-related crashes | 1 | 8% | 32% |
Alcohol-impaired and speeding-related count everyone killed in those crashes, so a death can appear in more than one row.
Crash factors
Speeding, alcohol, night and weekend crashes
8%
of fatal crashes were speeding-related
- About one-quarter of the share in Wisconsin: 31%
- About 30 percent of the share in the United States: 28%
8%
of fatal crashes involved a drinking driver
- About one-quarter of the share in Wisconsin: 33%
- About one-third of the share in the United States: 25%
| Category | Jefferson County | Wisconsin | United States |
|---|---|---|---|
| Speeding-related | 8.3% | 32.5% | 24.8% |
| Alcohol-involved | 8.3% | 31.0% | 28.1% |
| At night | 50.0% | 44.8% | 53.6% |
| At weekends | 16.7% | 33.3% | 32.6% |
Share of fatal crashes. Alcohol-involved means a police-reported drinking driver.
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Timing
When crashes happen
50%
of fatal crashes happened at night
- About 1.1 times the share in Wisconsin: 45%
- About the same as the share in the United States: 54%
17%
of fatal crashes happened at weekends
- About half the share in Wisconsin: 33%
- About half the share in the United States: 33%
| Category | Fatal crashes |
|---|---|
| 12am | 1 |
| 1am | 2 |
| 2am | 0 |
| 3am | 2 |
| 4am | 0 |
| 5am | 1 |
| 6am | 1 |
| 7am | 1 |
| 8am | 1 |
| 9am | 0 |
| 10am | 2 |
| 11am | 2 |
| 12pm | 1 |
| 1pm | 1 |
| 2pm | 4 |
| 3pm | 3 |
| 4pm | 2 |
| 5pm | 3 |
| 6pm | 3 |
| 7pm | 7 |
| 8pm | 2 |
| 9pm | 4 |
| 10pm | 1 |
| 11pm | 1 |
All crashes 2020–2024.
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| Category | Fatal crashes |
|---|---|
| Sun | 3 |
| Mon | 5 |
| Tue | 3 |
| Wed | 7 |
| Thu | 6 |
| Fri | 12 |
| Sat | 9 |
All crashes 2020–2024.
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| Category | Fatal crashes |
|---|---|
| Jan | 7 |
| Feb | 1 |
| Mar | 4 |
| Apr | 3 |
| May | 4 |
| Jun | 2 |
| Jul | 3 |
| Aug | 8 |
| Sep | 3 |
| Oct | 5 |
| Nov | 4 |
| Dec | 1 |
All crashes 2020–2024.
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Conditions
Weather and light
| Category | Fatal crashes |
|---|---|
| Clear | 26 |
| Cloudy | 11 |
| Snow | 4 |
| Rain | 2 |
| Fog, Smog, Smoke | 1 |
| Sleet or Hail | 1 |
All crashes 2020–2024. Crashes where conditions were not reported are left out.
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| Category | Fatal crashes |
|---|---|
| Daylight | 26 |
| Dark - Not Lighted | 16 |
| Dark - Lighted | 2 |
| Dusk | 1 |
All crashes 2020–2024. Crashes where conditions were not reported are left out.
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Roads and vehicles
Where and what, 2020–2024
Roads with the most fatal crashes
- I-948
- SR-1063
- SR-163
- US-123
- US-182
- CR-N2
- SR-592
- CR-D2
- SR-892
- SR-261
Road names as recorded in police reports.
| Category | Vehicles |
|---|---|
| Cars | 22 |
| SUVs | 14 |
| Motorcycles | 11 |
| Medium and heavy trucks | 9 |
| Pickup trucks | 5 |
| Other vehicles | 2 |
| Vans | 1 |
All crashes 2020–2024.
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Vehicles most often involved
- Toyota RAV43
- Buick LeSabre2
- Chevrolet Camaro2
- Chevrolet Malibu2
- Ford F-3502
- Ford Focus2
- Nissan Rogue2
- Ram 15002
- Buick LaCrosse1
- Buick Rendezvous1
Reflects how common a vehicle is as well as crash involvement; not a safety rating.
Crashes
Fatal crashes
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Fatal crashes in 2024. Crashes without reported coordinates are not shown.
Filter crashes
| Date | Location | Road | Deaths |
|---|---|---|---|
| Nov 15, 2024 | — | SR-89 | 1 |
| Nov 14, 2024 | — | COFFEE RD | 1 |
| Oct 16, 2024 | — | CR-U | 1 |
| Oct 12, 2024 | — | CR-N | 1 |
| Sep 20, 2024 | — | CR-CW | 1 |
| Sep 11, 2024 | Palmyra | 4TH ST | 1 |
| Aug 24, 2024 | — | CR-H | 1 |
| Aug 12, 2024 | Johnson Creek | SR-26 | 1 |
| Aug 9, 2024 | — | I-94 | 1 |
| Mar 15, 2024 | — | BERYL DR | 1 |
| Jan 24, 2024 | — | I-94 | 1 |
| Jan 9, 2024 | — | US-18 | 1 |
| Aug 31, 2023 | — | CR-D | 1 |
| Aug 19, 2023 | — | CR-Z | 1 |
| May 5, 2023 | — | I-94 | 1 |
| Apr 12, 2023 | — | SR-106 | 1 |
| Apr 6, 2023 | Lake Mills | I-94 | 1 |
| Apr 1, 2023 | — | SR-106 | 2 |
| Mar 20, 2023 | — | SR-16 | 1 |
| Jan 25, 2023 | — | US-12 | 1 |
| Jan 13, 2023 | — | CR-G | 1 |
| Nov 26, 2022 | — | SR-16 | 1 |
| Oct 29, 2022 | — | CR-N | 1 |
| Oct 21, 2022 | Fort Atkinson | N HIGH AVE | 1 |
| Sep 16, 2022 | — | CR-E | 1 |
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Source: NHTSA Fatality Analysis Reporting System (FARS), 2020–2024. A fatal crash is one in which at least one person died within 30 days. Population: US Census Bureau estimates.