According to the FBI's Uniform Crime Report, in 2022, of the 1,232,428 violent offenses known to police, only 36.7 percent were cleared by arrest or exceptional means. Of the 6,513,829 property offenses known to police in 2022, only 12.1 percent were cleared by arrest or exceptional means.

In 2020, of the 1,277,696 violent offenses known to police, 41.7 percent were cleared by arrest or exceptional means. Of the 6,452,038 property offenses known to police in 2020, 14.6% were cleared by arrest or exceptional means. 

In 2000, of the 1,131,923 violent offenses known to police, 47.5 percent were cleared by arrest or exceptional means. Of the 8,235,013 property offenses in 2000 known to police, only 16.7 percent were cleared by arrest or exceptional means. 

Table: Clearance Rates for Reported Violent and Property Crimes in the US, 1996-2020 and 2022 

"Cleared by arrest

"In the UCR Program, a law enforcement agency reports that an offense is cleared by arrest, or solved for crime reporting purposes, when three specific conditions have been met. The three conditions are that at least one person has been:

"• Arrested.

"• Charged with the commission of the offense.

"• Turned over to the court for prosecution (whether following arrest, court summons, or police notice).

"In its clearance calculations, the UCR Program counts the number of offenses that are cleared, not the number of persons arrested. The arrest of one person may clear several crimes, and the arrest of many persons may clear only one offense. In addition, some clearances that an agency records in a particular calendar year, such as 2022, may pertain to offenses that occurred in previous years. Cleared by exceptional means In certain situations, elements beyond law enforcement’s control prevent the agency from arresting and formally charging the offender. When this occurs, the agency can clear the offense exceptionally. Law enforcement agencies must meet the following four conditions in order to clear an offense by exceptional means. The agency must have: 
"Identified the offender.

"• Gathered enough evidence to support an arrest, make a charge, and turn over the offender to the court for prosecution.

"• Identified the offender’s exact location so that the suspect could be taken into custody immediately.

"• Encountered a circumstance outside the control of law enforcement that prohibits the agency from arresting, charging, and prosecuting the offender.

"Examples of exceptional clearances include, but are not limited to, the death of the offender (e.g., suicide or justifiably killed by police or citizen); the victim’s refusal to cooperate with the prosecution after the offender has been identified; or the denial of extradition because the offender committed a crime in another jurisdiction and is being prosecuted for that offense. In the UCR Program, the recovery of property alone does not clear an offense. "

Source

"Crime in the United States 2022 - Offenses Cleared," FBI Uniform Crime Report (Washington, DC: US Dept of Justice, Fall 2023).
"Crime in the United States 2022 - Property Crime," FBI Uniform Crime Report (Washington, DC: US Dept of Justice, Fall 2023).
"Crime in the United States 2022 - Violent Crime," FBI Uniform Crime Report (Washington, DC: US Dept of Justice, Fall 2023).
"Crime in the United States 2020 - Offenses Cleared," FBI Uniform Crime Report (Washington, DC: US Dept of Justice, Fall 2021).
"Crime in the United States 2020 - Property Crime," FBI Uniform Crime Report (Washington, DC: US Dept of Justice, Fall 2021).
"Crime in the United States 2020 - Violent Crime," FBI Uniform Crime Report (Washington, DC: US Dept of Justice, Fall 2021).