The worst unemployment: El Centro, California with more than 24%. This town is in the heart of the Imperial Valley, east of San Diego. The BLS numbers track nicely with the job site, simplyhired.com's tracking. It shows the number of job listings in El Centro has declined by 27% since August 2007.
The metro area with the lowest jobless rate is curiously the place where I was born. According to the BLS, the Houma-Bayou Cane-Thibodaux district has an unemployment rate of 3.5%. At least those Cajuns have jobs.