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





Fall Parish Mission
with Fr. Tom McCarthy

Begins Monday, Oct. 9th
7-8:30 PM in the church

Join us for our 3 Night - Fall Parish Mission Monday, Oct. 9 thru Wednesday Oct. 11 from 7-8:30 pm in the Church. Our Mission will be led by Fr. Tom McCarthy. The Theme of the Mission is "Our Restless Journey." Life is a restless journey towards God united in mind and heart. Are we fighting or embracing the journey? There will be Reconciliation on Tuesday night & Mass on Wednesday night.


Make a Difference Day
Sign Ups Now Open

Make a Difference Day
Saturday, October 21

Join us for A Day of Faith and Service to Bring Jesus to Others! There's dozens of meaningful, family-oriented service projects offered at SMI & out in the community. It’s a great opportunity for everyone to come together in loving service & fellowship! The wide assortment of service projects offers something suitable for all ages, including families with youth, teens, young adults, & seniors...REGISTER HERE

Protecting God's
Children Workshops

Out of concern for the safety and well-being of children, every diocesan, parish, school or RE employee or volunteer who is involved with minors on a regular basis and those who may have an opportunity to be alone with children during parish, school or RE sponsored events, are required to attend a Virtus Protecting God’s Children program.

We have scheduled Protecting God’s Children Workshops for the following dates:
Wed., Sept...READ MORE 


20th Annual SMI Golf Outing - Friday, Sept. 22

Join us for the 20th Annual St Mary Immaculate Parish Golf Outing at the Bolingbrook Golf Club on Friday, September 22, 2017. The outing includes lunch, golf, cocktails, dinner, raffles & prizes. All proceeds raised at this event benefit an educational fund for the wonderful teachers at St. Mary Immaculate Parish School. For more information on the event and sponsorship opportunities or to register to golf, please visit www.smigolf.org.

Filipino Mass and Fellowship - Sunday, Sept. 24 at 4 pm

St. Mary Immaculate Parish and the Parish Filipino Ministry cordially invite one and all to a Filipino Mass in Cana Hall. Our Presider will be Rev. Fr. Mario Quejadas. Fellowship and refreshments will follow at 5:00 p.m. in the Faith Sharing Room. The reception will be potluck style. Please make you check payable to Simbang Gabi (tax deductible) Please mail to: St. Mary Immaculate Parish 15629 S. Rt. 59 Plainfield IL 60544.


It’s never too late to keep your promise…

At baptism we make a promise to raise our children in the Catholic Faith. Let us help you keep that promise by enrolling your children in our Religious Education and Confirmation Programs.  We are still welcoming students in all grades K-12. Guide your children on the path to a deeper, more meaningful relationship with our Lord, He is patiently waiting for us. For more information, please call the SMI RE office at 815-436-4501.
















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.







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