The Eastern Ohio Athletic Conference (EOAC) is an Ohio High School Athletic Association high school athletic conference that began competition in the 2017–18 school year and is made up of member schools from Columbiana and Mahoning counties in Ohio. The league was formed from members of the red and white tiers of the former Inter-Tri County League.
Members +SchoolNicknameLocationColorsTenureNotesColumbianaClippersColumbianaRed and white 2017–David AndersonBlue DevilsLisbonBlue and white 2017–East PalestineBulldogsEast PalestineBrown and white 2017–Southern LocalIndiansSalinevilleBlue and gold 2017–UnitedGolden EaglesHanovertonBlue and gold 2017–WellsvilleTigersWellsvilleOrange and black 2017–Valley ChristianEaglesYoungstownBlue and gold 2020–
Future members SchoolLocationNicknameColorsYear joiningNotesWestern ReserveBerlin CenterBlue DevilsBlue, red & white 2027Joining in 2027 from Mahoning Valley Athletic Conference
Former members +SchoolNicknameLocationColorsTenureNotesLeetoniaBearsLeetoniaBlue and white 2017–2026Leftfor Northeastern Athletic ConferenceTorontoRed KnightsTorontoRed and White 2017–2019Left for OVAC
History The Eastern Ohio Athletic Conference was formed when the Inter-Tri County League disbanded in 2016. Seven members of the red and white tiers of the ITCL would form the EOAC (Columbiana, Lisbon, East Palestine, Leetonia, Southern, Toronto, United and Wellsville.) conference play began in the fall 2017–18 season.
Toronto announced they would forfeit its membership in the EOAC after two seasons of membership. They left following the 2018–19 school year, citing different reasons for their departure such as financial reasons from higher league and official costs, and lower crowds of both home and away games due to traveling distance between member schools. Toronto had rejoined its previous conference, the Ohio Valley Athletic Conference.
Youngstown Valley Christian accepted its invitation to join the EOAC in 2019, with them beginning conference play in the 2020–21 school year. They were previously a member of the Portage Trail Conference but left due to wanting to compete with schools closer to enrollment size and travel distance.
Leetonia, who is one of the EOAC's founding members, announced in 2025 they will be departing from the league following the 2025–26 school year, with them joining the Northeastern Athletic Conference in hopes of playing schools closer in size and competition to them.
The EOAC extended an invited to Western Reserve, after they announced in April 2026 that they would be leaving the Mahoning Valley Athletic Conference. The Western Reserve board of education voted in May 2026 to join the EOAC beginning the 2027–28 school year.
Conference championships Conference Championships of the EOAC since 2017 +YearFootballVolleyballBoys SoccerGirls SoccerBoys BasketballGirls BasketballBaseballSoftball2025–26UnitedColumbianaUnitedColumbianaLisbon/ColumbianaSouthern2024–25UnitedColumbianaUnitedUnitedValley ChristianColumbianaUnitedColumbiana2023–24UnitedColumbianaUnitedUnitedLisbonColumbiana/United/SouthernColumbianaColumbiana2022–23Valley ChristianWellsvilleUnitedUnitedSouthernUnitedColumbianaColumbiana2021–22UnitedWellsvilleUnitedUnitedWellsvilleUnitedUnitedColumbiana2020–21UnitedWellsvilleUnitedUnitedSouthernEast PalestineColumbianaColumbiana2019–20SouthernWellsvilleUnitedUnitedColumbianaColumbianaNO SEASON - COVIDNO SEASON - COVID2018–19SouthernWellsvilleUnitedUnitedTorontoColumbianaTorontoLisbon2017–18East PalestineSouthernUnitedUnitedTorontoColumbianaTorontoUnited
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