MURFREESBORO, Tenn. (OSBORNE) -- A new federal study says Williamson County residents saw their wages jump over the past year at a rate more than two-and-a-half times the national average.

A report by the Bureau of Labor Statistics says Williamson County enjoyed the nation’s fifth fastest wage growth between March 2018 and March this year. Wages in the county increased during the year by 7.4 percent.

By contrast wages in Davidson County fell during the same period by .5 percent.

One-third of Tennessee's 95 counties have average weekly wages of less than $700.