Former Albia High School coach charged with multiple counts of sexual abuse

Adam DeCamp
Special Agent in Charge

September 7, 2021

Ames, Iowa - 36-year old Aaron Koester has been arrested following an investigation by the Albia Police Department and the Division of Criminal Investigation. Koester of Indianapolis, Indiana, was arrested by Indiana authorities on September 3 and extradited to the Monroe County Jail on September 5. Koester remains in the Monroe County Jail on a $200,000 bond.

Koester, who is a former high school coach, has been charged with multiple felony counts of sexual abuse against a minor. The charges against Koester include two counts of Sexual Abuse in the 2nd Degree (Class B felony) and two counts of Sexual Abuse in the 3rd Degree (Class D felony). These charges are not the result of interactions Koester had as a coach.

This investigation is on-going and additional charges are possible. Anyone with information is asked to contact the Albia Police Department at (641) 932-7815.


The Iowa Department of Public Safety (DPS) is the largest law enforcement agency in the state. It includes six divisions and several bureaus, all working together with local, state and federal government agencies and the private sector, to keep Iowa a safe place by following our core values: leadership, integrity, professionalism, courtesy, service and protection. Divisions within the Iowa DPS: Iowa Division of Criminal Investigation, Iowa Division of Narcotics Enforcement, Iowa State Patrol, Iowa State Fire Marshal Division, Iowa Division of Intelligence and Fusion Center, and Administrative Services Division. The Department of Public Safety is led by the Commissioner who is appointed by the Governor.