States › Colorado › Summit County
Summit County
Residents 30,882Deaths 2024 4Deaths 2015–2024 41Latest data year 2024
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Latest data year: 2024. Figures are aggregates from NHTSA's Fatality Analysis Reporting System; no individual crash is identified.
NHTSA's FARS file lists 41 people killed in 37 fatal crashes in Summit County, Colorado, between 2015 and 2024, 4 of them in 2024.
With 30,882 residents, that is 13.3 deaths per 100,000 people a year over the ten years, 17% higher than the Colorado rate of 11.4 and close to the national rate of 11.8.
The ten-year death toll was about level between 2005–2014 (42) and 2015–2024 (41).
Of the factors FARS records, the one that stands furthest above the state share here is speeding: 43.2% against 35.4% for Colorado.
32% of the county's fatal crashes happened between 6pm to midnight, and Tuesday was the most common day (22%).
Trend since 1975
Ten-year total down 2% (42 in 2005–2014, 41 in 2015–2024). The shaded band is the ten-year window used for rates and shares. County codes are matched to today's Census county list; a few historic code changes are merged.
Compared with Colorado and the nation
| Measure | Summit | Colorado | United States |
|---|---|---|---|
| Deaths per 100,000 residents a year, 2015–2024 | 13.3 | 11.4 | 11.8 |
| Deaths per 100,000 residents, 2024 | 13.0 | 11.6 | 11.5 |
| Deaths, 2015–2024 | 41 | 6,518 | 389,190 |
| Fatal crashes, 2015–2024 | 37 | 6,017 | 358,460 |
| Deaths per fatal crash | 1.1 | 1.1 | 1.1 |
| Change vs previous ten years | -2% | +29% | +7% |
| Crashes on rural roads | 57% | 39% | 43% |
Rates divide deaths by Census Bureau population estimates for each year (residents, not road users; through traffic on major routes raises the rate of small counties). Population 30,882 in 2024.
Factors
"Alcohol" counts crashes where police reported at least one driver as drinking (FARS DR_DRINK), not the BAC-based alcohol-impaired measure NHTSA publishes separately. "Speeding" counts crashes with a driver coded as racing, exceeding the limit or too fast for conditions. Details in the methodology. Factor pages: alcohol, speeding, pedestrians, motorcycles, unrestrained occupants.
Time of day and day of week
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Fatal crashes in Summit County by weekday and hour, 2015–2024: darker cells are busier. 37 crashes with a known hour and weekday.
By weekday
Light condition
Road type
FHWA functional classes as coded in FARS (FUNC_SYS), share of fatal crashes with a reported class; tick marks the Colorado share. Interstates and other principal arterials carry the most traffic, so a high share there is expected. See what the road classes mean.
Weather
Routes with the most fatal crashes in Summit
| # | Route | Type | In county | Fatal crashes | Deaths | Alcohol | Speeding |
|---|---|---|---|---|---|---|---|
| 1 | Interstate 70 | Interstate | 13 | 313 | 352 | 29% | 30% |
| 2 | State Route 9 | State highway | 10 | 27 | 28 | 26% | 26% |
| 3 | US Route 6 | US highway | 5 | 109 | 117 | 36% | 29% |
Signed routes (Interstate, US and state highways) that have a page on this site, ranked by fatal crashes in this county over 2015–2024; "fatal crashes" and "deaths" columns are the statewide totals for the route. Local streets and county roads are not listed.
By year, 2015–2024
| Year | Fatal crashes | Deaths | Drinking-driver crashes | Per 100,000 | |
|---|---|---|---|---|---|
| 2024 | 4 | 4 | 1–2 | 13.0 | CO 2024 |
| 2023 | 5 | 5 | 1–2 | 16.2 | CO 2023 |
| 2022 | 3 | 3 | 0 | 9.7 | CO 2022 |
| 2021 | 6 | 6 | 1–2 | 19.4 | CO 2021 |
| 2020 | 1–2 | 1–2 | 0 | — | CO 2020 |
| 2019 | 4 | 6 | 1–2 | 19.4 | CO 2019 |
| 2018 | 1–2 | 1–2 | 0 | — | CO 2018 |
| 2017 | 4 | 4 | 1–2 | 13.0 | CO 2017 |
| 2016 | 6 | 8 | 1–2 | 25.9 | CO 2016 |
| 2015 | 3 | 3 | 1–2 | 9.7 | CO 2015 |
Counts under three are shown as "1–2" (small-count rule). Per-100,000 uses the 2024 population for every year in this table; the ten-year rate above uses each year's estimate.
Questions and answers
How many people died in crashes in Summit County, Colorado?
4 people died in 4 fatal crashes in 2024; 19 over 2020–2024 and 41 over 2015–2024, according to NHTSA's Fatality Analysis Reporting System.
How does Summit compare with Colorado?
13.3 deaths per 100,000 residents a year over 2015–2024, against 11.4 for Colorado and 11.8 nationally. Rates use Census Bureau population estimates.
What share of fatal crashes in Summit involved alcohol?
24.3% of fatal crashes in 2015–2024 had at least one driver reported by police as drinking, against 34.1% in Colorado. The factor furthest above the state share was speeding at 43.2%.
Which roads in Summit see the most fatal crashes?
Among signed routes with a page on this site, Interstate 70 (13 fatal crashes in the county, 2015–2024), State Route 9 (10 fatal crashes in the county, 2015–2024) and US Route 6 (5 fatal crashes in the county, 2015–2024).
When do fatal crashes happen in Summit?
Most often between 6pm to midnight (32% of crashes) and on Tuesdays (22%); 43.2% happened after dark.
Where does this data come from?
NHTSA's Fatality Analysis Reporting System annual files (1975–2024) and Census Bureau county population estimates. Figures are aggregates; no individual crash is identified. See the methodology page for definitions.
Provenance
Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, annual national CSV files 1975–2024 (accident table for every year; vehicle and person tables for 2015–2024), public domain. Population: US Census Bureau, Population Estimates Program, county totals (vintages 2000–2010, 2010–2020 and 2020–2024). Data through 31 Dec 2024; page generated 30 Sep 2026. Processing errors are corrected at the next build; see corrections and sources.