8. Fort Lauderdale, Florida
The good news about Fort Lauderdale is the city's strict sex offender residency law, which prevents offenders from moving within 1,000 feet of schools, parks, playgrounds, day care centers and public school bus stops. The bad news is that sex offenders have so few housing options (only about 10 percent of the city is open to them) that they have clustered together, or worse, disappear off the grid making it hard for families to know what their risk truly is. Fort Lauderdale ranked fairly poorly when it came to both sex offenders per capita and violent crime.