COUNTY FATALITY DATA
Louisa County, Iowa
Road fatality data for Louisa County (IA). Data period: 2016-2023.
- 19
- Total Fatalities (2016-2023)
- 7
- Latest Year Deaths
- 20.0
- Per 100k Residents
- Stable
- Trend
The verdict
Louisa County's fatality rate of 20.0 per 100,000 residents leaves it more dangerous than most U.S. counties by that per-capita measure.
- 28%
- of rated U.S. counties are deadlier per capita
- 12.2/100k
- Iowa county average
- Stable
- fatality trend
What the Data Shows
Louisa County, Iowa recorded 19 total road fatalities across 17 reported crashes during the 2016-2023 reporting window, according to NHTSA's Fatality Analysis Reporting System. The most recent year covered by the data logged 7 deaths on county roads, and the annual average works out to approximately 2.1 fatalities per year. Adjusted for population, the fatality rate is 20.0 per 100,000 residents, which leaves it more dangerous than most U.S. counties by that per-capita measure among the 3,137 U.S. counties in this dataset.
Cause-code breakdowns are not individually published for Louisa County in the current FARS release, so readers looking for contributing-factor data should use the Iowa state page, which aggregates county-level case files into statewide totals. Either way, the underlying records are drawn from a census of fatal crashes, not a statistical sample, so the counts are actual deaths rather than estimates.
The directional trend for Louisa County is stable, meaning annual counts have stayed within a narrow band relative to the average. Residents, insurers, and policy analysts can use this baseline alongside population density, highway mile data, and rural-versus-urban road mix to judge whether Louisa County's 19-death total is proportionate to its exposure. All numbers are for research and informational use only.
Total Fatalities
19
Latest Year
7
Avg Annual
2.1
Rate per 100K
20.0
Trend
↔ Stable
How does Louisa County compare?
Average annual road deaths per 100,000 residents. Choose any comparison from the menu.
Louisa County is 64% deadlier than the comparison
Average annual road deaths from the NHTSA Fatality Analysis Reporting System over population from the U.S. Census Bureau Population Estimates Program (Vintage 2023). Rates shown for counties with 10,000+ residents.
Among the 15 rated counties in Iowa, Louisa County ranks 5 for per-capita risk, above the state's own per-capita average of 12.2 per 100,000 -- nationally, this rate leaves it more dangerous than most U.S. counties by that per-capita measure. The gap between Louisa County's rate and the state average is 7.8 per 100,000. Its closest per-capita peer statewide is Floyd County, at 19.6 per 100,000 (a difference of 0.4). Its peer counties, highest to lowest per 100,000 residents: Cass County (28.9), Iowa County (25.6), Harrison County (21.8), Mills County (20.5), Floyd County (19.6), Benton County (18.6), Clayton County (17.7), Lee County (16.6), Henry County (16.4), Hardin County (16.4), Hamilton County (16.3), Chickasaw County (15.4), Madison County (15.3), Cedar County (15.3).
Louisa County's rate vs. every rated U.S. county
Deaths per 100,000 residents -- counties with 10,000+ people, NHTSA FARS over Census population
20 28th percentile a lower per-capita rate than 28% of 2,392 rated counties
Each bar is a band; taller bars hold more rated counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NHTSA FARS over U.S. Census Bureau population estimates · 2026-06-03
Louisa County's rate vs. the Iowa state average
Frequently Asked Questions
How many traffic fatalities occurred in Louisa County, Iowa?
Louisa County recorded 19 total traffic fatalities across 17 reported crashes over the data period (2016-2023). The most recent year saw 7 fatalities. The county averages approximately 2.1 fatalities per year.
What is the leading cause of road fatalities in Louisa County?
Cause-code breakdowns are not individually published for Louisa County in the current FARS release. Statewide data for Iowa may provide additional context.
Is the trend of road fatalities in Louisa County increasing or decreasing?
The trend in Louisa County is stable. Fatality counts have remained relatively consistent over the data period.
What is the fatality rate per capita in Louisa County?
Louisa County has a fatality rate of 20.0 per 100,000 residents, which leaves it more dangerous than most U.S. counties by that per-capita measure among the 3,137 U.S. counties in this dataset.
How does Louisa County compare to the rest of Iowa?
Louisa County's per-capita rate of 20.0 per 100,000 residents is above the Iowa county average of 12.2. Visit the Iowa state page for the full county-by-county breakdown.
Where does the road fatality data for Louisa County come from?
All road fatality data comes from the NHTSA Fatality Analysis Reporting System (FARS), a census of fatal motor vehicle crashes on public roads in the United States. FARS data covers the period 2016-2023 and includes all crashes resulting in at least one fatality within 30 days.
Source: NHTSA Fatality Analysis Reporting System (FARS) NHTSA Fatality Analysis Reporting System (FARS) This information is for research and informational purposes only
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainRoadSafety is computed directly from NHTSA FARS census data, no number is typed in by an editor. County figures are computed directly from NHTSA FARS census data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.