May the Lord in his goodness lead us all closer to him.

And by our love and service to one another, may we hear him say to us,
"Well done, my good and faithful servant... Come, share your master's joy" (Mt 25:23).


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  • Saint Irenaeus

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  • Father's Day Novena

    Our 9-day Novena of Masses begins Friday, June 9 and ends on Saturday, June 17. To submit names you want remembered in the Father's Day Novena of Masses, please click on the button below. Names need to be submitted by 8 a.m. on June 8.

    Click to submit name to be remembered

  • eucharistic procession




    The procession of the Blessed Sacrament will start at the church about 9 a.m. and proceed south on Grindlay to Orange. We’ll walk past City Hall and the library, and then turn north on the access road between the library and the tennis courts. After walking through the Civic Center parking lot, we’ll head north on Grindlay to arrive back at Saint Irenaeus in time for the 9:45 a.m. Mass.

    This is a wonderful way to share our love for Jesus and the Eucharist with the surrounding community!

  • Father's Day celebration

    Saturday, June 17 at 6:00 p.m.

    in the rectory backyard

    Attention all dads!

    In celebration of Father’s Day this year, Fr. Binh invites all dads to join him in the parish rectory backyard for an evening of food and fellowship!

    Click on this link to RSVP

    For planning purposes, please RSVP by Thursday, June 15.


    CLASS OF 2019 alumna ERYNN SWEENEY

    Published in Oc Catholic

    Enjoy this inspirational essay by our Parish School alumna, Erynn Sweeney. This essay first appeared in OC Catholic on March 31, 2023.

    Click here to read the essay >

  • BIBLE CAMP 2023

    JULY 17-21, 8:45 a.m. to 12:00 p.m.

    To learn more and to register,

    Visit our bible camp page

    Preschool (ages 4 and 5) through 6th grade

    A fee applies for this program.

    Registration has started! Don't miss out on Bible Camp!

    One week each July, Saint Irenaeus' Youth Faith Formation offers campers a faith-filled adventure complete with bible stories, crafts and other summer activities.

  • Faith Formation Registration

    for the 2023-2024 term has started! 


    Preschool - 6th Grade

    Sacrament Preparation

    1st Grade - High School (Includes First Reconciliation and First Holy Communion)

    Click on link to learn more


    Grades 7 through 12

    Confirmation Year 1 and 2

    Grades 9 & 10 but up to 12

    Registration is required, classes start in late August/early September 2023

    Click on this link to learn more


    Grades 7 & 8

    Registration is ongoing, the first meeting starts in October 2023

    Click on this link to learn more

2023 PSA Campaign

Pastoral Services Appeal (PSA) is an annual campaign that funds selected ministries and services benefiting all Catholics in the Diocese of Orange. Those of you who contributed to the 2022 PSA should have received a letter from Bishop Kevin W. Vann thanking you for your prayer and support. I too am grateful for your participation and contribution.

Like the previous year, the money that is raised through the 2023 PSA campaign has been allocated specifically to fund: 1) diocesan Catholic Schools, 2) families and individuals through Catholic Charities, 3) diaconate and priestly formation, 4) priestly retirement, 5) parish support, 6) prison ministry and other outreach. The PSA allows us to respond to Jesus’ call to discipleship beyond the boundaries of our parish: You shall love your neighbor as yourself (Leviticus 19:18).

Last year, we surpassed our overall diocesan PSA goal and received $106,630 in rebates! This year, our diocese has given us the same goal of $201,000. Once this goal is met, all of the money over that goal comes back to our parish. The 2023 PSA parish rebate money will be earmarked to replenish the parish building fund that was used to renovate our church. 

We asked that you prayerfully consider donating to this year's 2023 PSA Campaign. No gift is too small and every gift is greatly appreciated. If each family gives a little, we will make a big impact!

Yours in Christ, Fr. Binh



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