Welcome to

St. Mary Immaculate Parish

A Roman Catholic Parish in the Diocese of Joliet

15629 S. Rt. 59, Plainfield, IL 60544     815.436.2651





SMI Parish School
Registration Now Open


St. Mary Immaculate Parish School registration for the 2017-2018 school year is now open.  As a school, we are proud of the high quality educational experience, staff, and faith based education that we provide.  Not only is our curriculum challenging, and staff progressive, but the St. Mary's community is an incredible group to get involved and active with.

We provide an Outstanding Catholic Education in both faith and academics for students age 3 - 8th grade. Our early childhood...READ MORE



Lent Confessions & Stations of the Cross

Confession & Stations of the Cross every Friday in Lent
(Except Good Friday)

Join us for an encounter with Jesus every Friday in Lent. Offering up the sacrifice of your time in Confession and the Stations  of the Cross is a great way to deepen your relationship with Christ.

Confessions & Stations
6 pm Confessions
7 pm Stations-English (Narthex)
7:30 pm Stations-Spanish (Narthex)
7 pm Stations-Polish (Cana) 

Lenten Parish Mission
with Fr. Carlos Martins

7 pm in the Church
Monday, March 20
- Wednesday, March 22

Join us at 7 pm in the Church the evenings of March 20, 21, and 22 for our Lenten Parish Mission hosted by Fr. Carlos Martins. You may remember Fr. Carlos as the priest who brought St. Maria Goretti to our parish in Fall 2015. Each evening he will lead us to an encounter with Christ through the "Lenten Conversations." Monday evening will include Eucharistic Adoration. Tuesday will include Reconciliation. Wednesday will include Mass.


2017 SMI Lenten Fish Fry

The Knights of Columbus Good Shepherd Council #5573 and Ladies Auxiliary will hold its 37th Annual SMI Lenten Friday Fish Fry. Please join us on the following Fridays: March 3, 10, 17, 24, 31 and April 7 with dinners served from 4:30 until 7:30 pm in the Gym of St. Mary Immaculate Parish. Phone orders for take-out accepted from 4:00 to 7:00 pm at 815-436-2651 ext. 841. Please pick up by 7:30 pm...Click HERE to view menu and for more information.

Lenten Regulations

1. Everyone 14 years of age or over is bound to abstain from meat on Ash Wednesday and all the Fridays of Lent. 2. Everyone 18 years of age and under 59 years of age is bound to fast on Ash Wednesday and Good Friday. 3. On these two days of fast and abstinence, only one full meatless meal is allowed. Two other meatless meals, sufficient to maintain strength, may be taken according to each one’s needs, but together they should not equal another...READ MORE 


RE/Confirmation 2017-18 Registration OPEN

Registration for the RE 2017-2018 School year has begun. Registration forms will go home the 1st week of March with each of the RE students. Additional forms will be available on our website or in the RE office. The Registration Period is Mar. 1 – Mar. 31. No Deposit payment is necessary to register. Our first automatic payment will be made on June 15, 2017. All 2016-2017 balances must be paid before we can accept a registration. After Mar. 31 the tuition rates will increase.

















Masses Times

4:00 pm
7:30 am
9:00 am
10:45 am
12:15 pm
6:00 pm (Contemporary Mass)

5:30 pm (Church)
12:15 pm (Cana Hall)

9:00 am (Cana Hall)


7:30 am


3:00-4:00 pm (Church)

(Or by appointment with the priests. To make an appointment contact the Parish Office at 815.436.2651)



Continuous exposition of the Most Blessed Sacrament from Sunday 7:00 pm through Friday 9:00 pm except on First Fridays when exposition continues overnight to Saturday 7:00 am.

  Connect with 
  our Parish! 



  Click here for the

full Parish Calendar




Online Giving

Online Giving

Secure and Convenient Donate now!