Our welcoming Christian community of St. Irenaeus Parish inspired by the words of our patron - "Humankind fully alive is God truly glorified" - journeys together to bring the love of Christ to all in our parish family through worship, faith formation, social justice, and loving service while reaching out to the broader community.

Public Liturgy: Sundays at 9:30am


St. Irenaeus is open for public liturgy on Sundays at 9:30am; doors open at 9:00am. Attendance is limited to 50 individuals; each person must register separately (including children). NO WALK-INS ALLOWED.

Register online by clicking the SignUpGenius Button below; you should receive a confirmation email right away. If you do not receive this confirmation your registration did not go through. If you have problems registering online you can call the office at 708-748-6891 or send an email to stirenaeus@archchicago.org.


Registration is open from NOON Monday through NOON Friday for the following Sunday.


Sign Up!


Second Sunday of Lent

Livestreaming at 9:30am on Feb. 28, 2021 


St. Irenaeus Church Lenten and Holy Week 2021

Lenten Works of Mercy


*Masses/Services marked with an asterisk (*) will be in person only; all other masses are in person and livestreamed


Attendance is limited to 50 individuals; each person must register separately (including children). No one will be admitted without a reservation.NO WALK-INS ALLOWED


Reservations can be made in one of the following ways: Click on the SignUpGenius link above, send an email to stirenaeus@archchicago.org or call the Parish Office at 708-748-6891 and the Reservation coordinator will make your reservation for you.

For Sunday masses, registration is open from Noon Monday through Noon Friday for the following Sunday.

For Holy Thursday and Good Friday, registration is open from Noon Saturday, March 27, 2021 through Noon Tuesday, March 30, 2021.

For Easter Vigil and Easter Sunday masses, registration is open from Noon Monday March 29, 2021 through Noon Thursday April 1, 2021.




Enter at the main church entrance on the corner of Indianwood Blvd and South Orchard Drive

  • Everyone MUST wear a mask at all times and observe Social Distancing requirements.
  • Everyone will enter at the handicapped ramp. At the door, a Greeter will take your temperature and direct you to check in at the Registration table. ALL parishioners must be pre-registered. NO EXCEPTIONS. 
  • After you are checked in, you will receive hand sanitizer from another Greeter. 
  • Next, wait in the line, at the designated places marked with blue tape;  an usher will walk you to your seat. Per Archdiocesan guidelines, parishioners will be seated from the front of the church to the rear. You may not be able to sit in your usual place. 
  • Everyone is to remain in their designated pew; should a restroom emergency arise, please signal an Usher who will guide you to the rest room and then back to your pew. A parent must accompany any child to the restroom.
  • If you need to leave church before mass is over reentry will not be allowed.


  • Leave your seat only when directed by usher or greeter.
  • Maintain six feet social distancing in the Communion line – look for marks with the blue tape on the floor.
  • Sanitize your hands using the sanitizer from the usher. After sanitizing do not touch any surfaces.
  • Approach the priest only after directed by an usher or the priest. DO NOT remove your face covering
  • Extend a single hand to receive the Host.
  • After moving six feet to the right or left, remove your mask and consume the Host.
  • Replace your face covering or mask.
  • Follow directions from usher to return to your pew

When Mass is Over

  • Ushers will direct parishioners to leave the church from the back to the front
  • Do not leave your pew until directed by an usher
  • Do not congregate inside the church when mass is over
  • Everyone must exit through the doors at the main church entrance on the corner of Indianwood Blvd and South Orchard Drive

Questions? Contact the Parish at:

  • 708-748-6891
  • stirenaeus@archchicago.org

Parishioner Reopening Guide

English | Español




  • Online at GiveCentral - https://www.givecentral.org/location/410
  • Checks may be mailed or dropped off at the Parish office at the following address: 
    St Irenaeus Church
    78 Cherry Street
    Park Forest, Illinois 60466


Why We Love St Irenaeus

Many of our parishioners shared why they love St Irenaeus. Click play to learn why!


Religious Education

Our Faith


Parish Photos

Events Calendar

Maps & Directions




Login Now   |   Register Now


What To Expect When You Attend Mass

Parishioner Reopening Guide


We live stream Sunday Liturgies at 9:30am on YouTube.

Click here to view on our YouTube Channel


Resuming Mon. Feb 22, 2021

Daily Masses are available on our YouTube Channel at 8:00am each morning.

Act of Spiritual Communion



Revised schedule due to COVID-19
Sunday: 9:30am 
Weekdays: 8:00am - Recordings available on parish YouTube Channel
Confession: call office to schedule

Click here for Bulletin




Upcoming Events


Full calendar of events

Catholic News & Perspective


link to your diocese