Incident
Police Officer Ray Costigan was killed in a vehicle crash on West 4th Street in Davenport while attempting to stop a speeding car.
Shortly before 1:00 a.m., Officer Costigan was at the Colliseum Dance Hall en route to his patrol area when he witnessed a vehicle speed past. He entered a friend's car and asked him to follow the vehicle down 4th Street. As they reached the intersection at Marquette Street, a car traveling south struck them. Their vehicle slid over 50 feet and flipped over, ejecting all four occupants. Officer Costigan was transported to the local hospital, where he succumbed to a skull fracture and internal injuries four hours later.
The other driver and a passenger were apprehended. They were released and never charged after an investigation determined that neither vehicle was speeding, and the driver was unable to see Officer Costigan's vehicle due to limited visibility. The speeding driver was never apprehended.
Officer Costigan was a United States Army World War I veteran and had served with the Davenport Police Department for one year.
Survivors
He was survived by his wife, two children, parents, and sister.
In Our Keeping
- Permanent identifier
BO-US-IA-6F57E3EE- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Police Officer Costigan gave the Davenport Police Department 1 year.
Thank you for your service to the Davenport community. Thank you for your service before it. Gone but never to be forgotten.
Rest easy, brother.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Military Service
Raymond D Costigan served in the the United States military before joining law enforcement.
Police Officer Raymond D Costigan is one of 10,095 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,587 officers honored here.
In IA, 71 of 226 officers were lost to accidents in the line of duty — 31.4% of this state's fallen. That is 0.4 percentage points above the national rate of 31%.
At Davenport Police Department, 1 of 6 officers on record were lost to accidents in the line of duty — 16.7% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Raymond D Costigan's cause is highlighted.
How Raymond D Costigan Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Raymond D Costigan is highlighted in Oct.
Incident Location
Military Service
Raymond D Costigan served in the United States military before joining law enforcement.
Visit Raymond D Costigan’s page on salute.nw →
His full service record — units, decorations, where he served — is kept on salute.nw.
Others Who Wore This Badge
5 officers from Davenport Police Department are honored on badge.nw.




