I've heard that Britain has a higher rate than the US.
American 'black, not hispanic' folks also have violent crime rates lower than their counterparts anywhere on the planet.
I haven't gotten into the 'white hispanic' and 'black hispanic' rates because the Fibbies don't publish enough information to be definitive ~ but odds are good their rates are lower than those of others of the same ethnotypical classification anywhere on the planet.
When you dig deeper ~ into Englishmen vs. Americans of substantially English ancestry, and Swedes vs. Americans of substantially Swedish ancestry, and so on, our rates are always lower than their rates ~ to the degree such things may be determined.
Widespread gun ownership undoubtedly contributes to a degree of politeness here not found elsewhere.
http://www.scribd.com/doc/56181236/Crime-in-Texas-2010-report
Texas 2010 Family Violence: Strong arm = 79%; No weapon = 8%; Knives = 4%; Blunt objects = 3%; Guns = 2%; Other = 5%.
http://www.disastercenter.com/crime/txcrime.htm
Your chances of being murdered by whatever means has fallen by half in Texas since 1960.