According to multiple sources, the United States has the most documented serial killers in its history than any other country in the world. The exact count of serial killers in US history varies greatly by source, but it is invariably many times higher than that of even the second-highest country, which is England. The following is a list of the top 10 countries with the most documented serial killers, according to Radford University Serial Killer Information Center:
- United States — 3,204
- England — 166
- South Africa — 117
- Canada — 106
- Italy — 97
- Japan — 96
- Germany — 85
- Australia — 81
- India — 80
- Russia — 73
It is important to note that the numbers may not be entirely accurate due to various factors such as differences in record-keeping, cultural factors, and the definition of "serial killer". Additionally, some countries records of serial killings date back many decades earlier than others, making their numbers seem higher by comparison.
