countywide
adjective, adverb mainly US uk/ˌkaʊn.tiˈwaɪd/ us/ˌkaʊn.t̬iˈwaɪd/
全县的（地）;全县范围的（地）
existing in or involving all parts of a county
a countywide survey 全县性调查
Countywide, exam results have improved by an average of eight percent. 全县考试成绩平均提高了8%。