Iowa fatal crashes in 1978
FARS records 638 deaths in 552 fatal crashes in Iowa in 1978.
In 1977 it records 628 deaths in 549 fatal crashes.
This site gives no rate for the years before 2000.
Deaths in Iowa rose by 1.6% from 1977 to 1978. In the United States they rose by 5.1%.
In 1978, a driver was recorded as drinking in 33.3% of fatal crashes in Iowa and 35.5% in the United States.
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
1978 beside 1977
| Figure | Iowa, 1978 | Iowa, 1977 | United States, 1978 |
|---|---|---|---|
| Deaths | 638 | 628 | 50,331 |
| Fatal crashes | 552 | 549 | 44,433 |
| Deaths for each 100,000 residents | n/a | n/a | n/a |
| Fatal crashes with a driver recorded as drinking | 184 | n/a | 15,780 |
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 its count of drinking drivers is unreliable for 1977, 1981 and 1999 to 2007, because it was derived in a wrong way. This site gives no count for these years.
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 1978
Note: a county with no fatal crash in 1978 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. | 140 | 25.6% |
| 6 a.m. to noon | 77 | 14.1% |
| Noon to 6 p.m. | 156 | 28.5% |
| 6 p.m. to midnight | 174 | 31.8% |
| Weekday | Fatal crashes | Share |
|---|---|---|
| Sunday | 93 | 16.8% |
| Monday | 49 | 8.9% |
| Tuesday | 54 | 9.8% |
| Wednesday | 66 | 12.0% |
| Thursday | 59 | 10.7% |
| Friday | 104 | 18.8% |
| Saturday | 127 | 23.0% |
Note: the tables have the fatal crashes with a known hour or weekday.
Cite this page
Fatal Roads. Iowa fatal crashes in 1978. https://fatalroads.com/state/iowa/1978/. 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 1978. 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 1978 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 1978 was in Iowa?
Iowa had 638 of the 50,331 deaths in the United States in 1978. That is 1.3 percent.
In how many counties of Iowa did FARS record a fatal crash in 1978?
FARS records one or more fatal crashes in 97 counties of Iowa in 1978.
How many fatal crashes in Iowa in 1978 had a driver recorded as drinking?
FARS records a driver as drinking in 184 of 552 fatal crashes in 1978.