So Fort Worth is safe and Dallas is dangerous? Should I build a house on the county line so I have a fighting chance?!
Its Dallas city, not county. Unless big cities as the metro areas grow have amenities that attract the Yuppies and the gentry, who can afford private schools, they tend to deteriorate as folks move outside the city limits. They tend to become parking lots for the underclass.
This is not counties or metropolitan areas including outer suburbs... it's just cities and their per capita crime rates.
I don't think this survey counts the 20 miles of suburbs (Arlington, Irving, etc.) that separate Dallas city limits from Fort Worth city limits.
In other words, it's Dallas City vs. the City of Fort Worth, not Dallas County vs. Tarrant County.
It's the city of Dallas, not the county. Half the cities in the metroplex are in Dallas County, with much lower crime rates.