Fatal crashes in Jefferson County, New York
In 2024, 8 people died in 8 fatal crashes in Jefferson County, 27.3% fewer than in 2023. From 2015 to 2024 the county recorded 94 fatal crashes and 101 deaths.
Deaths in Jefferson County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 8 | 8 |
| 2023 | 10 | 11 |
| 2022 | 16 | 16 |
| 2021 | 9 | 9 |
| 2020 | 10 | 15 |
| 2019 | 10 | 10 |
| 2018 | 7 | 7 |
| 2017 | 4 | 4 |
| 2016 | 8 | 9 |
| 2015 | 12 | 12 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in Jefferson County
US 11 had the most fatal crashes of any numbered road in Jefferson County from 2015 to 2024: 14, with 18 deaths. The 6 roads listed held 53% of all fatal crashes in Jefferson County from 2015 to 2024; 1 is an interstate, 1 US route, 4 state highways. Interstate, US and state routes with 5 or more fatal crashes in the county; county roads and city streets are in the county's total but not listed.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | US 11 | 14 | 18 | 3 | |
| 2 | State Highway 3 | 10 | 10 | 3 | no page |
| 3 | State Highway 12 | 8 | 8 | 4 | no page |
| 4 | State Highway 12E | 7 | 7 | 2 | no page |
| 5 | I-81 | 6 | 6 | 1 | |
| 6 | State Highway 26 | 5 | 5 | 4 | no page |
Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Evans Mills 15, Watertown 14, Brownville 7, Theresa 6, Clayton 6, Rodman 5, Alexandria Bay 5. The city is not filed for crashes outside a city.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen in Jefferson County
Too few crashes to name a heaviest slot. The grid shows the shares; a share is only given over 20 crashes.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 2.1 percent, 2 fatal crashes | 1.1 percent, 1 fatal crashes | 4.3 percent, 4 fatal crashes | 2.1 percent, 2 fatal crashes | 3.2 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes |
| Mon | 1.1 percent, 1 fatal crashes | 1.1 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 1.1 percent, 1 fatal crashes | 3.2 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes |
| Tue | 2.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.1 percent, 2 fatal crashes | 1.1 percent, 1 fatal crashes | 2.1 percent, 2 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 5.3 percent, 5 fatal crashes | 6.4 percent, 6 fatal crashes | 2.1 percent, 2 fatal crashes | 3.2 percent, 3 fatal crashes |
| Thu | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 3.2 percent, 3 fatal crashes | 2.1 percent, 2 fatal crashes | 7.4 percent, 7 fatal crashes | 6.4 percent, 6 fatal crashes |
| Fri | 0.0 percent, 0 fatal crashes | 1.1 percent, 1 fatal crashes | 3.2 percent, 3 fatal crashes | 5.3 percent, 5 fatal crashes | 3.2 percent, 3 fatal crashes | 2.1 percent, 2 fatal crashes |
| Sat | 5.3 percent, 5 fatal crashes | 1.1 percent, 1 fatal crashes | 3.2 percent, 3 fatal crashes | 6.4 percent, 6 fatal crashes | 1.1 percent, 1 fatal crashes | 5.3 percent, 5 fatal crashes |
By hour
By month
- Jan6.4%
- Feb3.2%
- Mar6.4%
- Apr3.2%
- May6.4%
- Jun11.7%
- Jul11.7%
- Aug13.8%
- Sep16.0%
- Oct11.7%
- Nov5.3%
- Dec4.3%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in Jefferson County first hit
The first harmful event was a fixed object such as a tree, pole or barrier in 38%; a collision with another vehicle in 28%, a pedestrian in 16%, a rollover in 9.6%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Fixed object (tree, pole, barrier, ditch) | 36 | 38% |
| Collision with another vehicle | 26 | 28% |
| Pedestrian | 15 | 16% |
| Rollover | 9 | 9.6% |
| Cyclist | 4 | 4.3% |
| Other | 4 | 4.3% |
| Parked vehicle | 0 | 0.0% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes in Jefferson County compare with New York
A drinking driver was recorded in 35% of fatal crashes in Jefferson County from 2015 to 2024, above the New York share of 20%; speeding in 38%, above the New York share of 31%; a hit-and-run in 1.1%, below the New York share of 8.2%; a driver recorded as distracted in 12%, about the New York share; 53% of passenger-vehicle occupants killed with belt use known were unbelted, above the New York share of 37%. Shares of fatal crashes from 2015 to 2024, against the share across all of New York. A share is only given over 20 crashes.
| Jefferson | New York | ||
|---|---|---|---|
| On rural roads | 64% | 30% | above the New York share |
| At or near an intersection | 23% | 34% | below the New York share |
| In the dark, road unlit | 30% | 17% | above the New York share |
| A drinking driver | 35% | 20% | above the New York share |
| Speeding | 38% | 31% | above the New York share |
| A distracted driver (as recorded) | 12% | 12% | about the same as the New York share |
| Occupants killed unbelted | 53% | 37% | above the New York share |
| Hit-and-run | 1.1% | 8.2% | below the New York share |
| A motorcycle involved | 18% | 18% | about the same as the New York share |
| Pedestrians among the dead | 15% | 26% | below the New York share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in Jefferson County
- How many people died in car accidents in Jefferson County in 2024?
- 8 people died in 8 fatal crashes in Jefferson County, New York, in 2024, 27.3% fewer than in 2023.
- What is the deadliest road in Jefferson County?
- US 11 had the most fatal crashes of any numbered road in Jefferson County from 2015 to 2024: 14, with 18 deaths.
- How many fatal crashes in Jefferson County involved a drinking driver?
- 33 of 94 fatal crashes in Jefferson County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 35%, against 20% across New York.
Other counties in New York with a page
- Suffolk County
- Nassau County
- Queens County
- Kings County
- Erie County
- Monroe County
- Bronx County
- New York County
- Westchester County
- Orange County
- Onondaga County
- Dutchess County
All fatal crashes in New York, with every county ranked.
Where the Jefferson County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Jefferson County (county code 45). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. The full method.