Believe it or not, the best person or agency to talk to about crime statistics in Louisville, is the Louisville Metro Police Department (502) 574-7111 or (502) 574-2111. Just contact them and give them the property address you are interested in.
Take a look at Trulia's Crime Maps: http://www.trulia.com/real_estate/Harmony-North_Carolina/crime/
This should give you a better understanding of the types of crimes in the area. Stay safe!
Ali, Community Manager