The 1984–85 County Championship was the 43rd season of the Liga IV, the fourth tier of the Romanian football league system.
The champions of each county association play against one from a neighboring county in a play-off to gain promotion to Divizia C. Teams promoted to Divizia C without a play-off matches as teams from less represented counties in the third division.
Strungul Chișineu-Criș won the Arad County Championship and qualify for promotion play-off in Divizia C. The championship final was played on 13 June 1985 at CIL Stadium in Sighetu Marmației.
Recolta Rozavlea won the Liga IV Maramureș County and qualify to promotion play-off in Divizia C. The match was played on 16 June 1985 at 23 August Stadium in Zalău.
Victoria Chimia Zalău won the Sălaj County Championship and qualify to promotion play-off in Divizia C.