MAC Commonwealth Conference
The MAC Commonwealth, in full Middle Atlantic Conference Commonwealth, is an intercollegiate athletic conference affiliated with the NCAA's Division III. It is one of the three conferences that operate under the umbrella of the Middle Atlantic Conferences; the others being the MAC Freedom and the Middle Atlantic Conference, a grouping used for some sports that consists of MAC Commonwealth and MAC Freedom schools. Member institutions are located in Pennsylvania and Maryland.
Member schools
Current members
The league currently has nine full members. The most recent changes to the MAC took place in 2020. First, the MAC announced in April 2019 that York College of Pennsylvania would join from the Capital Athletic Conference in 2020. The following month, the MAC announced that upon York's arrival, the MAC Commonwealth and MAC Freedom would be realigned so that each would have 9 members. Eastern moved from the MAC Freedom to the MAC Commonwealth, while Arcadia and Lycoming moved in the opposite direction.| Institution | Location | Nickname | Founded | Type | Enrollment | Joined |
| Albright College | Reading, Pennsylvania | Lions | 1856 | Private/Methodist | 2,304 | 1999 |
| Alvernia University | Reading, Pennsylvania | Golden Wolves | 1958 | Private/Catholic | 2,872 | 2009 |
| Eastern University | St. Davids, Pennsylvania | Eagles | 1952 | Private/Baptist | 3,420 | 2020 |
| Hood College | Frederick, Maryland | Blazers | 1893 | Private/Reformed | 1,174 | 2012 |
| Lebanon Valley College | Annville, Pennsylvania | Dutchmen | 1866 | Private/Methodist | 1,712 | 1999 |
| Messiah College | Grantham, Pennsylvania | Falcons | 1909 | Private/Christian | 3,305 | 1999 |
| Stevenson University | Stevenson, Maryland | Mustangs | 1947 | Private/Catholic | 3,621 | 2012 |
| Widener University | Chester, Pennsylvania | Pride | 1821 | Private/Nonsectarian | 6,402 | 1999 |
| York College of Pennsylvania | York, Pennsylvania | Spartans | 1787 | Private/Nonsectarian | 5,564 | 2020 |
Enrollment source:
Former members
Membership timeline
DateFormat = yyyy
ImageSize = width:1000 height:auto barincrement:20
Period = from:1999 till:2024
TimeAxis = orientation:horizontal
PlotArea = right:20 left:0 bottom:50 top:5 #> to display a count on left side of graph, use "left:20" to suppress the count, use "left:20"<#
Colors =
id:barcolor value:rgb
id:line value:black
id:bg value:white
id:Full value:rgb # Use this color to denote a team that is a member in all sports
id:FullxF value:rgb # Use this color to denote a team that is a member in all sports except for football
id:AssocF value:rgb # Use this color to denote a team that is a member for football only
id:AssocOS value:rgb # Use this color to denote a team that is a member in some sports, but not all
id:OtherC1 value:rgb # Use this color to denote a team that has moved to another conference
id:OtherC2 value:rgb # Use this color to denote a team that has moved to another conference where OtherC1 has already been used, to distinguish the two
PlotData=
width:15 textcolor:black shift: anchor:from fontsize:s
bar:1 color:Full from:1999 till:end text:Albright
bar:2 color:FullxF from:1999 till:2014 text:Elizabethtown
bar:3 color:Full from:1999 till:2007 text:Juniata
bar:4 color:Full from:1999 till:end text:Lebanon Valley
bar:5 color:FullxF from:1999 till:end text:Messiah
bar:6 color:Full from:1999 till:2007 text:Moravian
bar:7 color:Full from:1999 till:2007 text:Susquehanna
bar:8 color:Full from:1999 till:end text:Widener
bar:9 color:Full from:2007 till:2020 text:Lycoming
bar:10 color:FullxF from:2008 till:2020 text:Arcadia
bar:11 color:FullxF from:2009 till:end text:Alvernia
bar:12 color:FullxF from:2012 till:end text:Hood
bar:13 color:Full from:2012 till:end text:Stevenson
bar:14 color:FullxF from:2020 till:end text:Eastern
bar:15 color:FullxF from:2020 till:end text:York
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text:"MAC Commonwealth membership history"