List of Phi Sigma Kappa chapters

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  Phi Sigma Kappa's Gamma chapter, at Cornell University, circa 1903. Newly remodeled 2014
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  ΦΣΚ's founding Alpha chapter, circa 1910. Newly remodeled 2015
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  ΦΣΚ's Beta Deuteron chapter, at Minnesota, circa 1933. Holds 26 live-ins today
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  ΦΣΚ's Nu chapter, at Lehigh, circa 1948
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  ΦΣΚ's Epsilon chapter, Sachem Hall, at Yale, 1907
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  ΦΣΚ Beta chap Union
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  ΦΣΚ's Delta chapter, West Virginia, 1910. Since replaced with a larger home
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  ΦΣΚ's Delta chapter, at West Virginia, circa 1941
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  ΦΣΚ's Eta chapter, at Maryland, circa 1954
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  ΦΣΚ's Chi chapter, at Williams, previous house, prior to 1947
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  ΦΣΚ's Chi chapter, at Williams, circa 1947
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  ΦΣΚ's Omicron chapter, at MIT, (former house) circa 1911
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  ΦΣΚ's Theta chapter, Columbia
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  ΦΣΚ's Pi chapter, at Franklin & Marshall College, 1910. (Now inactive)
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  ΦΣΚ's Alpha Deuteron chapter, at Illinois, circa 1950
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  ΦΣΚ's Mu chapter, at Penn, circa 1950
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  ΦΣΚ's Kappa chapter, at Penn State, circa 1950
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  ΦΣΚ's Lambda chapter, at George Washington, circa 1947
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  ΦΣΚ's Theta Deuteron chapter, at Oregon State, circa 1947
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  ΦΣΚ's Sigma Triton chapter, at Indiana, (former house) circa 1949
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  ΦΣΚ's Theta Triton chapter, at Texas, circa 1949
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  ΦΣΚ's Xi chapter, at St. Lawrence, circa 1949
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  ΦΣΚ's Omicron chapter, at MIT, early-1950s
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  ΦΣΚ's Iota Triton chapter, at UConn, circa 1949
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  ΦΣΚ's Phi Deuteron chapter, at Kentucky, circa 1946
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  ΦΣΚ's Delta Deuteron chapter, at Michigan, circa 1946
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  ΦΣΚ's Xi Deuteron chapter, at Tennessee, (former house) circa 1946
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  ΦΣΚ's Beta Triton chapter, at Knox, circa 1946
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  ΦΣΚ's Omega Deuteron chapter, at USC, (former house) circa 1946
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  ΦΣΚ's Alpha chapter, at UMass, circa 1948
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  ΦΣΚ's Beta Deuteron chapter, at Minnesota, circa 1947
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  ΦΣΚ's Chi Deuteron chapter, at Washington State, circa 1947
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  ΦΣΚ's Gamma chapter, at Cornell, circa 1947
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  ΦΣΚ's Lambda Triton chapter, at Rhode Island, circa 1948
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  ΦΣΚ's Mu Deuteron chapter, at Montana State, circa 1948
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  ΦΣΚ's Phi Deuteron chapter, at Kentucky, circa 1941
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  ΦΣΚ's Phi Chapter, at Swarthmore, circa 1944
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  ΦΣΚ's Pi chapter, at Franklin & Marshall, circa 1943
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  ΦΣΚ's Delta Triton chapter, at Purdue, circa 1943
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  ΦΣΚ's Nu Triton chapter, at Hartwick, circa 1948
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  ΦΣΚ's Pi Deuteron chapter, at Ohio State, circa 1950
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  ΦΣΚ's Omicron Triton chapter, at UC Davis, circa 1949
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  ΦΣΚ's Theta Triton chapter, at Texas, circa 1950
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  ΦΣΚ's Delta Tetarton chapter, at Florida, circa 1952
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  ΦΣΚ's Xi chapter, at St. Lawrence, circa 1952
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  ΦΣΚ's Tau Triton chapter, at Baldwin-Wallace College, circa 1952
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  ΦΣΚ's Theta Triton chapter, at Texas, circa 1952

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  ΦΣΚ's Delta chapter today, at West Virginia Univ
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  ΦΣΚ's Psi chapter today, at Virginia
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  ΦΣΚ's Xi Deuteron chapter, at Tennessee Knoxville
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  ΦΣΚ's Gamma Triton chapter, at South Carolina
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  ΦΣΚ's Gamma chapter today, at Cornell
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  ΦΣΚ's Omega Deuteron chapter, at USC
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  ΦΣΚ's Iota chapter, at Stevens Institute
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  ΦΣΚ's Gamma Tetarton chapter, at Rensselaer Poly
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  ΦΣΚ's Kappa chapter, at Penn State

Interest groups form Colonies, which in turn become Chapters by earning a Phi Sigma Kappa Charter from the International Headquarters. A charter is a document which conveys from a governing body permission for a local group to operate as a chapter. A PSK Charter also signifies the date and location of the new chapter, and lists its founding members. In the event of a re-colonization, a new group may still refer to the original charter date when citing the age of their chapter, even in a re-colonization.

• Phi Sigma Kappa
• ΦΣΚ's building acquisition entity: "PSK Properties"
• Phi Sigma Epsilon, (includes more info on the many chapters that came from the merger)
• Phi Sigma Phi, the spin-off group of a few PSE chapters from 1987 that rejected the merger.

• a. ^{^} For a brief period, Alpha chapter called itself "Pi" because this was the initial letter of the Greek word for "first." The Pi designation was used from 1878 coinciding with the first appearance of the public name of the Fraternity (that is, Phi Sigma Kappa) until the end of 1887. Similarly, Beta chapter at first had selected its name to be "Alden March chapter", after the name of the founder of that college. It was only when the petition came in from the group that would become Phi Sig's Gamma chapter at Cornell that the first two chapters accepted the names Alpha and Beta.
• b. ^{^} The oldest traditional fraternities (~junior societies) at Yale named their buildings with "Hall" nicknames, by which they wished to be known on campus: Thus Phi Sigma Kappa's Epsilon chapter adopted the name Sachem Hall. Similarly, the Theta Xi chapter was Franklin Hall, Delta Psi adopted the name St. Anthony Hall which spread to their entire small but old national fraternity, Phi Gamma Delta was Vernon Hall, Chi Phi was York Hall, Psi Upsilon became the Fence Club, and Delta Phi was known at Yale as St. Elmo's. ΦΣΚ's Sachem Hall was located at 124 Prospect Street.[233][234]
• c. ^{^} The Tau chapter of Phi Sigma Kappa separated from the national organization in 1956 over the issue of racial discrimination and became Phi Tau coeducational local fraternity. Two months later, the short-lived policies that incited the separation were themselves dropped, and Phi Sigma Kappa became one of the first fraternities to welcome black students.
• d. ^{^} Cornell was the only school with active chapters of both Phi Sigma Kappa and Phi Sigma Epsilon when the two fraternities merged in 1985. Phi Sigma Epsilon's Phi Tau chapter was therefore released to join another national fraternity. It opted to join Theta Chi, but that chapter has since closed. As Theta Chi's alumni held another, larger building the chapter's former building was sold to Alpha Chi Omega sorority. More detail on this may be found in the references.
• e. ^{^} Zeta chapter's alumni are still active, and have established a significant pool of scholarship dollars administered by ΦΣΚ's national headquarters. The funds are available to any Phi Sig or their children who attend any of the four City College of NY schools for undergraduate or graduate work.
• f. ^{^} The Sigma Zeta chapter of Phi Sigma Epsilon did not participate in the merger with Phi Sigma Kappa. It eventually became a chapter of Phi Sigma Phi but, dissatisfied, was then re-established as a colony of Phi Sigma Kappa in 1996.
• g. ^{^} The Epsilon Septaton chapter of Phi Sigma Kappa reverted to its previous local affiliation of Delta Beta Chi in 1995. Kappa Septaton chapter likewise ended its affiliation with Phi Sigma Kappa in 2007 to become to the Beta chapter of Delta Beta Chi. Both local chapters are now dormant. This two-chapter group is not to be confused with the small national sorority of the same name.
• h. ^{^} 1952's "Bedford Resolution" was one of the reasons that led to the expulsion of Mu Triton at Boston University, which lost its charter in 1954. Similarly, Beta Triton at Knox seceded back to local status in 1955. Hartwick College's Nu Triton was closed for the same reason, also in 1955. All three are today dormant.
• i. ^{^} There exists some confusion regarding two chapters named Phi Tau. Phi Sigma Epsilon's Phi Tau chapter at Cornell was existent from 1963 until the merger with Phi Sigma Kappa in 1985 when it was released to join another national. The Fraternity retained its much older, original Gamma chapter. The former PSE chapter there should NOT be confused with Phi Sigma Kappa's Tau chapter at Dartmouth, which, upon seceding from the national fraternity in 1956, renamed itself Phi Tau. Name similarity is purely coincidental.
• j. ^{^} Both Phi Sigma Kappa and Phi Sigma Epsilon had chapters at Ferris State University. The Phi Sigma Kappa chapter closed in 1978. Phi Sigma Epsilon's Sigma Epsilon chapter became the Sigma Epsilon chapter of Phi Sigma Kappa when the two fraternities merged.
• k. ^{^} Greek systems have died out on some campuses. At times when the United States or Canada has entered a wartime posture or a period of significant manpower draft, such as World War I or World War II, weaker chapters of many fraternities have had to close, with some unable to recover after the war. Campus acceptance can vary, making re-establishment far more difficult: Fraternities and sororities remain unwelcome at Queen's University, of Kingston, Ontario where PSK's Rho Chapter failed when all members of the young chapter died in service during World War I or failed to return after the war. In response to efforts by other fraternities to form or re-form on the campus in the 1920s, that University's student senate (AMS) banned Greek societies in 1933. Likewise at St. John's College, in Annapolis, Maryland, PSK's weak Sigma Chapter failed to reopen after World War II at this classics-focused liberal arts school. Neither school has fraternities or sororities today.
• l. ^{^} Beginning in the late 1960s, several small eastern schools banned their fraternity systems out of egalitarian concerns, leading to alarm among fraternity executives that such a trend would be more widespread. However, their worst fears did not come to pass, and the trend fizzled. Indeed, some of these schools, reporting a marked drop in alumni giving, have rescinded such bans. For example, former long-time Phi Sig campuses Swarthmore College and Franklin and Marshall now allow Greek organizations to re-charter. Nevertheless, PSK's Chi Chapter at Williams College, of Williamstown, Massachusetts fell to the anti-Greek trend in 1966, and remains closed to recognized expansion today. Other institutions that have adopted an anti-Greek posture include Colby College[235] which banned them outright and Amherst College,[236] a private college in that same Massachusetts town where PSK was founded, on which campus fraternities nevertheless exist sub-rosa. Neither Colby or Amherst Colleges have ever hosted a Phi Sig chapter.
• m. ^{^} Sigma Phi Sigma was a fraternity of 18 chapters that was unable to re-kindle itself after World War II. Several of its largest groups affiliated into Phi Sigma Kappa, merging assets for the benefit of the combined organization after SPS's dissolution in 1947. These include an exceptionally sound chapter at Cal Berkeley, which merged into PSK's Omega chapter, and most of the ex-Nevada and Wisconsin chapter members who also sought PSK. In fact, alumni of the dormant Wisconsin chapters of both SPS and PSK merged their assets and worked together to re-establish Zeta Deuteron on the Wisconsin campus, where it had been defunct since 1931. The fine relationship PSK enjoyed with SPS at its dissolution was spurred by "notably excellent relations with PSK's Bro. Dean Palm and Bro. Bill Wood."[237][238]
• n. ^{^} The Epsilon Kappa chapter of Phi Sigma Kappa separated from the national organization in 1998 and became a local organization called Phi Sigma Chi fraternity. This is not to be confused with the NY-based multicultural fraternity of Phi Sigma Chi, with which the Stevens Point chapter has no connection. This now-local chapter has disbanded.
• o. ^{^} These four functioning chapters did not participate in the merger between Phi Sigma Kappa and Phi Sigma Epsilon. A total of seven (these four, plus a schismatic group of PSE Lambda chapter alumni who didn't transition into the new Epsilon Lambda, plus two revived chapters) would go on to form Phi Sigma Phi fraternity in 1988. See further discussion on the Talk page.
• p. ^{^} In its biggest loss to the co-ed movement which affected some fraternities on a few campuses in the 1970s, Phi Sigma Kappa's Nu Deuteron chapter at Stanford University voted to admit women in 1973, and thus voluntarily removed itself from the national fraternity by 'going local'. This action came just prior to the reintroduction of sororities on campus due to Title IX. Continuing to this day, its former building was retained by the group, still labeled as the "Phi Sig" house, and is one of many cooperative housing entities on campus. Its co-ed residents are called "Phi Sigs." This group has no connection with the national fraternity at this time. Still, Phi Sigma Kappa has expressed a long-term goal of re-establishing itself on legacy campuses it has lost, such as Stanford.[239]
• q. ^{^} Phi Sigma Kappa's merger with Phi Sigma Epsilon meant occasional merger of alumni groups on campuses where both fraternities had, or previously had had a presence. At the 1985 merger, both may have been inactive, or one may have been active with the other dormant, or since that time a chapter may have been re-colonized, usually taking on the older chapter's name from that campus. In the single case where both fraternities had an active chapter at the time of the merger, at Cornell, the younger chapter was released. For purposes of this list, when a chapter name is bolded this indicates it is an active chapter.
• r. ^{^} The University of Wisconsin–Platteville chapter began as the Philadelphian Society in 1866, the year this school was founded. Sometime after 1893 they adopted the name Phi Sigma, continuing as a local fraternity. The group merged into Phi Sigma Epsilon in 1969, then followed that fraternity's merger with Phi Sigma Kappa in 1985. It withdrew or closed in 1991, possibly becoming dormant for a time. However, the group, now unaffiliated with Phi Sigma Kappa, has emerged with local alumni support as a local under its old name, Phi Sigma. Website accessed 16 Feb 2020. Name similarity to PSK's Phi Sigma chapter, at Hillsdale College is merely coincidental.

• Phi Sigma Kappa National Directory
• Phi Sigma Kappa's Properties group, supporting chapter housing projects
• Google map listing chapters