Click on the Trulia "Local Info" link at the top of this page.
Enter Nashville Tn as the city.
Then click the "local info" link in the drop down menu or the link at right top of page.
Under Nashville Real Estate Overview click the "Crime" link.
There is a heatmap that shows the location of high crime areas, violent / non-violent crimes with police reported incidents listed below the map. Here is a link to get you to that page:
Good luck! I hope this helps & thank you for using this source for a Realtor's advice!
Judging from the map, it's safe to say that the Southwest side of Nashville has less crime. It's also a bit pricier until you get further from town,
BTW, I used to live in Mar Vista (in LA) where the crime rate was relatively high, and never had a problem. Statistics don't tell the whole story.
And welcome to Nashville! It's a great town.
Village Real Estate