Mahoning Valley Athletic Conference (OHSAA)
The Mahoning Valley Athletic Conference is an athletic conference a part of the Ohio High School Athletic Association with member schools from Trumbull, Portage, Mahoning and Columbiana Counties.
History
The Mahoning Valley Athletic Conference was formed by several schools in the Trumbull and Mahoning County area in the 2017–18 school year after the Inter-Tri County Conference disbanded.In 2020, the remaining members of the Blue Tier Schools of the All-American Conference joined to create the Gray Tier of the MVAC. James A. [Garfield High School (Garrettsville, Ohio)|Garrettsville Garfield] would also be joining the former AAC schools, however it wouldn't participate in conference play until the 2021–22 school year due to a scheduling commitment they had with their former conference, the Portage Trail Conference.
In 2022, Sebring McKinley announced their departure from the conference as a football member team and announced they'd be joining the Northern 8 Football Conference, after struggling with roster numbers for several seasons, but would remain a part of the conference for the other sports.
In 2023, Southeast High School announced they would be leaving the Portage Trail Conference and join the Grey Tier of the MVAC. Campbell High School would be moved to the Scarlet Tier.
In 2026, Waterloo, Garfield and Southeast's Board of Education voted to leave the MVAC in favor of the newly formed Greater Portage Athletic Conference, which is set to begin conference play in the 2027–28 school year.
Members
| School | Location | Nickname | Colors | Tenure | Notes |
| Jackson-Milton | North Jackson | Blue Jays | Royal Blue & White | 2017– | |
| Lowellville | Lowellville | Rockets | Navy & Gold | 2017– | |
| McDonald | McDonald | Blue Devils | Blue & White | 2017– | |
| Sebring McKinley | Sebring | Trojans | Purple & Gold | 2017– | 2017–2023 for football; moved to Northern 8 Football Conference |
| Campbell Memorial | Campbell | Red Devils | Red & Black | 2020– | moved to Scarlet Tier from Grey Tier in 2024 |
| Mineral Ridge | Weathersfield | Rams | Orange & Black | 2017– | |
| Springfield | New Middletown | Tigers | Orange & Black | 2017– | |
| Waterloo | Atwater | Vikings | Burgundy & White | 2017– | Leaving in 2027 for Greater Portage Athletic Conference |
| Western [Reserve High School (Berlin Center, Ohio)|Western Reserve] | Berlin Center | Blue Devils | Blue, Red & White | 2017– |
Membership timeline
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bar:1 color:blue from:2017 till:end textcolor:white text:Jackson Milton
bar:2 color:blue from:2017 till:end textcolor:yellow text:Lowellville
bar:3 color:blue from:2017 till:end textcolor:white text:McDonald
bar:4 color:purple from:2017 till:end textcolor:yellow text:Sebring
bar:5 color:orange from:2017 till:end textcolor:black text:Mineral Ridge
bar:6 color:claret from:2017 till:2027 textcolor:white text:Waterloo
bar:7 color:blue from:2017 till:end textcolor:red text:Western Reserve
bar:8 color:blue from:2020 till:end textcolor:yellow text:Brookfield
bar:9 color:purple from:2020 till:end textcolor:yellow text:Champion
bar:10 color:red from:2020 till:end textcolor:black text:Campbell
bar:11 color:yellow from:2020 till:end textcolor:black text:Crestview
bar:12 color:red from:2020 till:end textcolor:white text:LaBrae
bar:13 color:claret from:2020 till:end textcolor:yellow text:Liberty
bar:14 color:orange from:2020 till:end textcolor:black text:Newton Falls
bar:15 color:yellow from:2021 till:2027 textcolor:black text:Garfield
bar:16 color:claret from:2024 till:2027 textcolor:yellow text:Southeast
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