Sunnyside, Houston, TX might be a top 5 in the U.S.
Sun takes averages around 100 something violent crime rate per 100,000 peoe that means in a year 1 in 10 people or slightly more or less depending on the year will have a violent crime committed against them and in 10* years their is a nearly 100% chance that a violent crime will happen to you.
The murder rate is so ugh that even though their are 1500-5000 people the area averages between 5-15 murders a year within a couple mile radius of the area.
Sunnyside rated one of nation
Read some of the statistics alone in the month of January for a neighborhood of around 1,500-5,000 people.
Using the 1990 census and assuming the population stayed the same and didn't decline 3,400 people experience 5 murders at the least in the neighborhood each year this means a murder ate of 150+ per 100,000 people and sin it such a small area that number can increase to more than 300 per 100,000 on a fluke year. I think last year the exact neighborhood experienced 7 murres can't find the link though but knowing that a neighborhood like this doesn't grow in population chances are the murder rate is even higher as probably somewhere around 2,000 or so people live there but thy haven't taken a census since 1990, with that crime no wonder why.