Combined Violent and Property Crime Offenses Known to Law Enforcement in Nassau County, NY was 9876.00000 Known Incidents in January of 2020, according to the United States Federal Reserve. Historically, Combined Violent and Property Crime Offenses Known to Law Enforcement in Nassau County, NY reached a record high of 17523.00000 in January of 2004 and a record low of 9876.00000 in January of 2020. 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 Nassau County, NY - last updated from the United States Federal Reserve on May of 2024.