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





Memorial Day Mass
and Office Closing



Monday, May 30 at 9:00 am

Memorial Day Mass Monday,
May 30 at 9:00 am at St. Mary Immaculate Cemetery, 14313 S. Naperville Road, Plainfield, IL. If there is inclement weather, Mass will take place at the Church at 9:00 am. Everyone is invited to bring a lawn chair.
Please note: There will be NO 7:30 am Mass on Memorial Day.

On Memorial Day (Monday,
May 30) the entire Parish
building including all offices
will be CLOSED.


Feast of Corpus Christi
Eucharistic Procession

Sunday, May 29th,
following the 12:15 pm Mass

In St. John Paul II’s Apostolic Letter, “Mane Nobiscum Domine”, he encouraged a Eucharistic procession on Corpus Christi: "Let us also celebrate with particular devotion the Solemnity of Corpus Christi, with its traditional procession. Our
faith in the God who took flesh
in order to become our
companion along the way
needs to be everywhere  proclaimed,...READ MORE

40 Weeks Whole
Life Confessions


Click HERE to Sign Up for
a Whole Life Confession

Please help us plan for Whole Life Confession services. To ensure that we will have enough priests to hear these whole life confessions, we are asking that you sign up for an evening by At this moment, you may be unsure whether or not you are going to make a sacramental Reconciliation, but this is an incredibly  moving experience in the Forty Weeks process, so we encourage...READ MORE



SMI Vacation Bible School Registration NOW OPEN

St. Mary Immaculate Vacation Bible School (VBS) is a week‐long program presented each summer for children entering PreK through 5th grades. Led by adult and youth volunteers, participants have an opportunity to learn about God’s love in a fun and exciting way. Activities include bible stories, songs, crafts, games and snacks. This year’s theme is Barnyard Roundup: Jesus Gathers Us Together. VBS begins on Monday June 20 and runs through...LEARN MORE

Parish Pilgrimage to France with Fr. David

We will visit Catholic Sites in France with Fr. David, September 20—30, 2016. Cost of the Pilgrimage is $3,795. Cities we will visit: Paris, Lisieux, Rouen, Chartres, Nevers, Paray le Monial, Ars, Lyon, Avignon, Carcassonne, Toulouse, Lourdes. If you have any interest level, please attend one of the Info Sessions...LEARN MORE

Open Registration at SMI Parish School

St. Mary Immaculate Parish School offers a quality faith-centered education for children from PreSchool (age 3 by September 1 of the school year) to Grade Eight. A family must be a registered parishioner at St. Mary Immaculate in order to register for our school or to be placed on the waiting list. We ask that you bring your child’s birth certificate and baptismal certificate along with a $125 registration fee per family with you when you register in the...READ MORE

2016 Catholic Ministries Annual Appeal - Your Gift Makes a Difference

This week, you are asked to review the 2016 Catholic Ministries Annual appeal (CMAA) tabloid that has been made available to you. The CMAA is much different than a one time pledge. Your gift over 10 months supports the good works of the diocese. A gift to the CMAA will touch the lives of many in our diocese in a positive way. Each gift makes a difference! Together, the gifts of many enable our diocese to deliver needed education, ministry and services...READ MORE
















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)

4:00-5:15 pm (North Wing Room A)

(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.

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