Immaculate Conception–St. Joseph School is committed to educating and developing each student's spiritual, intellectual, physical, and civic potential to its fullest degree. This is achieved by providing two certified teachers in every classroom from PreK-3rd grade. Students in grades 4-5 have one certified teacher per classroom and a dedicated differentiation specialist to tailor learning to student's needs. Grades 6-8 study departmentalized, learning from teachers specializing in specific subject areas.

Outside of the core classroom instruction, ICSJ faculty includes two Spanish teachers, two physical education teachers, a technology integration specialist, a librarian, an art teacher, a music teacher, a STEM teacher, and a school nurse. Students and faculty are supported daily by two learning specialists, a literacy specialist, two school counselors, an Early Childhood Director, and an Athletic Director.

The ICSJ staff, comprised of 60 professionals, is led by our Co-Principals, two Assistant Principals, and our Pastor, Father Larry Lisowski. Over seventy percent of the ICSJ team holds a Master's Degree or is completing one. The administrative team members hold Master's Degrees in education and the required Type 75 Illinois Administrative Certificate.

With a strong emphasis on creating an authentic professional learning community among our talented faculty, professional development and a growth mindset have always been core values at Immaculate Conception–St. Joseph School.

ICSJ teachers have earned Bachelor's and Master's degrees from the following universities: