The death rate is more than twice that tallied by the federal government over the past decade, a count that officials concede is incomplete, the report said.
The analysis is based on data the Post is compiling on every fatal shooting by the police in 2015, as well as of every officer killed by gunfire in the line of duty.
"We are never going to reduce the number of police shootings if we don't begin to accurately track this information," said Mr Jim Bueermann, president of the Police Foundation, a non-profit organization dedicated to improving law enforcement.
The Post analysis comes as a national debate is raging over the police use of deadly force, especially against minorities.