Combined Violent and Property Crime Offenses Known to Law Enforcement in Johnson County, IA was 275.00000 Known Incidents in January of 2021, according to the United States Federal Reserve. Historically, Combined Violent and Property Crime Offenses Known to Law Enforcement in Johnson County, IA reached a record high of 373.00000 in January of 2004 and a record low of 237.00000 in January of 2014. Trading Economics provides the current actual value, an historical data chart and related indicators for Combined Violent and Property Crime Offenses Known to Law Enforcement in Johnson County, IA - last updated from the United States Federal Reserve on May of 2024.