"Only 21 percent of employees in the top 98 metro areas work within three miles of downtown, while over twice that share (45 percent) work more than 10 miles away from the city center. The larger the metro area, the more likely people are to work more than 10 miles away from downtown; almost 50 percent of jobs in larger metros like Detroit, Chicago, and Dallas locate more than 10 miles away on average compared to just 27 percent of jobs in smaller metros like Lexington-Fayette, Boise, and Syracuse."
"Employment steadily decentralized between 1998 and 2006: 95 out of 98 metro areas saw a decrease in the share of jobs located within three miles of downtown. The number of jobs in the top 98 metro areas increased overall during this time period, but the outer-most parts of these metro areas saw employment increase by 17 percent, compared to a gain of less than one percent in the urban core. Southern metro areas were particularly emblematic of the outward shift of job share with a 2.6 percentage-point decline in urban core job share and a 4.8 point gain in the outermost ring, outpacing the 98 metro average (a 2.1 point decline and a 2.6 point gain, respectively)."