Looks remarkably like the Blue/Red map after the election:
The United States can really be divided up into three types of places. Places where there are no murders, places where there are a few murders, and places where murders are very common.
In 2014, the most recent year that a county level breakdown is available, 54% of counties (with 11% of the population) have no murders. 69% of counties have no more than one murder, and about 20% of the population. These counties account for only 4% of all murders in the country.
The worst 1% of counties have 19% of the population and 37% of the murders. The worst 5% of counties contain 47% of the population and account for 68% of murders. As shown in figure 2, over half of murders occurred in only 2% of counties.
Even within the Counties with the murders, the murders are heavily Concentrated within those counties.
When you look at individual counties with a high number of murders, you find large areas with few murders. Take Los Angeles County, with 526 murders in 2014, the most of any county in the US. The county has virtually no murders in the northwestern part of the county. There was only one murder each in Beverly Hills, Hawthorne, and Van Nuys. Clearly, different parts of the county face very different risks of murder.
Lots more interesting data (including graphs and maps) included at the link.