Initially, the school curriculum consisted mainly of logic and divinity, and it was considered a prominent seminary for students wishing to study priesthood.

Similarly, its tenure at Newgate Lane also proved short, as three years later the school had moved again, this time to Park House in Corbally.

[6] In 1825, the Park House facility had closed and was succeeded by the establishment of an academy on Mallow Street by former president of the school, Dr. Carey.

St. Munchin’s College was re–established in 1853 by Bishop Ryan and for the first time provided subjects including music, drawing, dancing and painting.

Since its construction and opening in 1962, the Corbally site has been refurbished and expanded several times in order to provide facilities fit for modern education.

Since opening, new classhalls, a computer room, library and swimming pool have been added to the facilities available at the Corbally site.

The text is taken from St Paul's Letter to the Ephesians: "If we live by the truth and in love, we shall grow in all ways into Christ."

(Eph 4:15) The founding philosophy of the school in 1796 was largely intended to prepare boys for seminaries for the Diocese.

Currently, the school advocates for boys to become leaders both in lay and ordained terms within the Diocese of Limerick community.

The school had adopted a code of behaviour which is based on its educational philosophy, reflecting the "ethos and characteristic spirit of St. Munchin’s College".

The school encourages all boys to be respectful to others, and recognises such instances of being unable to provide their school journal when asked, wearing non uniform clothing or jewellery, the wearing of make up and unacceptable hair cuts which would result in an automatic suspension and abusive or disrespectful language as unacceptable forms of behaviour.

Boys failing to produce homework, having no appropriate materials in class, poor punctuality and low level disruptive behaviour such as whispering and talking to others during classroom instruction would warrant a yellow card, whilst unacceptable language would warrant a yellow and more serious offences such as bullying and refusal to follow instructions would result in a red.

In the junior cycle, the curriculum offered to boys consists of the subjects of Religion, Gaeilge, English, Maths, History, Geography, Science, Business Studies, French, German, Art Technical Graphics, S.P.H.E, C.S.P.E., P.E., Computer Studies, Technology, Wellbeing, Coding and Digital Media.

Extra–curricular activities include Rugby, Hurling, Gaelic Football, Basketball, Athletics, Golf, Quizzes, Tours, Charitable Works Drama and Musical, Talent Competition, Limerick Diocesan Lourdes Pilgrimage, Public Speaking and Debating and various Leadership Opportunities.