Iowa fatal crashes in 1975
FARS records 670 deaths in 575 fatal crashes in Iowa in 1975.
This site gives no rate for the years before 2000.
To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.
The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.
NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .
This site reads the years before 2015 from one fixed copy. It does not track later revisions of these years. Release dates
1975 beside the United States
| Figure | Iowa, 1975 | United States, 1975 |
|---|---|---|
| Deaths | 670 | 44,525 |
| Fatal crashes | 575 | 39,161 |
| Deaths for each 100,000 residents | n/a | n/a |
| Fatal crashes with a driver recorded as drinking | 143 | 7,583 |
Note: this site has no rate for the years before 2000.
Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure. NHTSA's definitions
NHTSA says that the alcohol data of the early years, especially 1975 and 1976, must be used with care.
For the years before 2015 the count is from the FARS element DRUNK_DR. It counts a blood alcohol concentration of .01 g/dL or more. From 2015 the count is from DR_DRINK and counts .001 g/dL or more.
Counties in 1975
Note: a county with no fatal crash in 1975 is not in the table. A count of 1 or 2 is written "1 or 2".
Time of day and weekday
| Time of day | Fatal crashes | Share |
|---|---|---|
| Midnight to 6 a.m. | 141 | 24.8% |
| 6 a.m. to noon | 96 | 16.9% |
| Noon to 6 p.m. | 169 | 29.8% |
| 6 p.m. to midnight | 162 | 28.5% |
| Weekday | Fatal crashes | Share |
|---|---|---|
| Sunday | 96 | 16.7% |
| Monday | 50 | 8.7% |
| Tuesday | 67 | 11.7% |
| Wednesday | 80 | 13.9% |
| Thursday | 77 | 13.4% |
| Friday | 94 | 16.3% |
| Saturday | 111 | 19.3% |
Note: the tables have the fatal crashes with a known hour or weekday.
Cite this page
Fatal Roads. Iowa fatal crashes in 1975. https://fatalroads.com/state/iowa/1975/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to .
The address of this page does not change.
Source of the figures
Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national file of 1975. This site reads the years before 2015 from one fixed copy. It does not track later revisions of these years. Residents: Census Bureau, Population Estimates Program, vintage 2025. Data to .
How the figures are made. Data sources and licences. Corrections.
Questions
Which file does the 1975 page use?
This site reads the years before 2015 from one fixed copy. It does not track later revisions of these years.
What part of the deaths in the United States in 1975 was in Iowa?
Iowa had 670 of the 44,525 deaths in the United States in 1975. That is 1.5 percent.
In how many counties of Iowa did FARS record a fatal crash in 1975?
FARS records one or more fatal crashes in 98 counties of Iowa in 1975.
How many fatal crashes in Iowa in 1975 had a driver recorded as drinking?
FARS records a driver as drinking in 143 of 575 fatal crashes in 1975.