Both Colombia and Mexico are OECD countries and have higher murder rates than the United States. Lithuania's is close. The U.S. is roughly on par with Greenland for murders per capita.

Sorry, my bad, the study above is for high-income OECD countries as opposed to all of them. Mexico and Colombia are both much poorer than the US, and Greenland is both not a country and a bit of a special case since the locals struggle so much with alcohol.