Historical Record of US Police Deaths

http://www.nleomf.org/facts/officer-fatalities-data/year.html

1791 to 2015

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deadliest years

1930 - 304 deaths

1974 - 280 deaths

1932 - 275 deaths

1973 - 275 deaths

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recent years

2015 - 123 deaths

2014 - 122 deaths

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low years

1943 - 87 deaths

1944 - 91 deaths

World War 2