“U.S. jails now hold nearly 700,000 inmates on any given day, up from 157,000 in 1970, and the Vera Institute of Justice found that smaller counties now hold 44 percent of the overall total, up from just 28 percent in 1978.”
Click on your county to see how the incarceration rate has ramped up since 1970.

http://abcnews.go.com/US/wireStory/study-smaller-counties-driving-us-jail-population-growth-35769092
