countywide

from WordNet (r) 3.0 (2006)

countywide
    adj 1: occurring or extending throughout a county; "a countywide
           war on drugs"; "countywide elections"

from The Collaborative International Dictionary of English v.0.48

countywide \countywide\ adj.
   including or occurring in all parts of a county; as, a
   countywide war on drugs; countywide elections.
   [WordNet 1.5]