There are only a few counties that are considered a medium risk for radon. You are in luck that you will be near a couple of them for work.
Most counties are considered a low risk though.
Here is a map showing each county and risk factor.
Zone 1 counties have a predicted average indoor radon screening level greater than 4 pCi/L (pico curies per liter) (red zones) Highest Potential
Zone 2 counties have a predicted average indoor radon screening level between 2 and 4 pCi/L
(orange zones) Moderate Potential
Zone 3 counties have a predicted average indoor radon screening level less than 2 pCi/L
(yellow zones) Low Potential
Edit: Go Rangers