| Cities (Illinois) | Churches (366)  |
| Chicago | All Saints–St. Anthony  |
| Chicago | Annunciata (English, Spanish)  |
| Oak Park | Ascension  |
| Chicago | Assumption  |
| Chicago | Assumption of the Blessed Virgin Mary (English, Spanish)  |
| Chicago | Blessed Alojzije Stepinac  |
| Lemont | Blessed Anton Martin Slomsek (Slovenian)  |
| Lemont | Blessed Jurgis Matulaitis (Lithuanian)  |
| Chicago | Blessed Sacrament  |
| Stone Park | Calvary Hill (Shrine) (Italian)  |
| Des Plaines | Carmelite Monastery (Monastery) (Latin)  |
| Chicago | Catholic Theological Union (University)  |
| Chicago | Christ the King  |
| Chicago | Christ the King Sovereign Priest (Shrine) (Latin)  Church of St. Gelasius |
| Chicago | Corpus Christi  |
| Westchester | Divine Infant Jesus  |
| Westchester | Divine Providence  |
| Norridge | Divine Savior  |
| Chicago | Epiphany (Spanish)  |
| Chicago | Five Holy Martyrs (Polish)  |
| Chicago | Good Shepherd (Spanish)  |
| Chicago | Holy Angels  |
| Chicago | Holy Cross (Monastery)  |
| Deerfield | Holy Cross  |
| Chicago | Holy Cross–Immaculate Heart of Mary  |
| Chicago | Holy Family  |
| Inverness | Holy Family  |
| Waukegan | Holy Family  Most Blessed Trinity Parish |
| Chicago | Holy Innocents (Spanish, Polish)  |
| Chicago | Holy Name of Jesu (Cathedral, Parish)  |
| Chicago | Holy Name of Mary  |
| Evergreen Park | Holy Redeemer  |
| Chicago | Holy Rosary  |
| Schaumburg | Holy Spirit  |
| Chicago | Holy Trinity (Polish)  |
| Chicago | Immaculate Conception  |
| Chicago | Immaculate Conception  |
| Chicago | Immaculate Conception (Spanish, Lithuanian)  |
| Chicago | Immaculate Conception (English, Spanish)  |
| Highland Park | Immaculate Conception  |
| Waukegan | Immaculate Conception  Most Blessed Trinity Parish |
| Chicago | Immaculate Heart of Mary  |
| Palos Heights | Incarnation  |
| Chicago | Korean Martyrs (Korean)  |
| Chicago | Madonna della Strada  Loyola University Chicago |
| Cicero | Mary, Queen of Heaven (Spanish, English)  |
| Park Ridge | Mary, Seat of Wisdom  |
| North Riverside | Mater Christi (Shrine)  Shrine of the Mother of Mothers |
| Chicago | Maternity of the Blessed Virgin Mary (Spanish)  |
| Chicago | Mother of God  |
| Mundelein | Mundelein Seminary (Seminary)  University of St. Mary of the Lake Chapel of the Immaculate Conception |
| Chicago | Nativity of Our Lord  |
| Chicago | Nativity of the Blessed Virgin Mary (Lithuanian, English)  |
| Chicago | Notre Dame de Chicago  |
| Chicago | Our Lady, Mother of the Church  |
| Chicago | Our Lady Gate of Heaven  |
| Willow Springs | Our Lady Mother of the Church (Polish)  |
| Cicero | Our Lady of Charity (Spanish, English)  |
| Chicago | Our Lady of Grace (Spanish)  |
| Des Plaines | Our Lady of Guadalupe (Shrine) (Spanish)  |
| Rosemont | Our Lady of Hope  |
| Beach Park | Our Lady of Humility  |
| Hometown | Our Lady of Loretto  |
| Chicago | Our Lady of Lourdes (English, Spanish)  |
| Chicago | Our Lady of Mercy  |
| Chicago | Our Lady of Mount Carmel  |
| Melrose Park | Our Lady of Mount Carmel (Shrine) (Italian, Spanish)  |
| Chicago | Our Lady of Peace (English, French)  |
| Glenview | Our Lady of Perpetual Help  |
| Chicago | Our Lady of Pompeii (Shrine)  |
| Niles | Our Lady of Ransom  |
| Chicago | Our Lady of Sorrows (Minor Basilica, National Shrine, Parish)  National Shrine of Our Sorrowful Mother and St. Peregrine |
| Chicago | Our Lady of Tepeyac (Spanish, English)  |
| Chicago | Our Lady of the Angels  |
| Northbrook | Our Lady of the Brook  |
| Cicero | Our Lady of the Mount  |
| Chicago Ridge | Our Lady of the Ridge  |
| Chicago | Our Lady of the Snows (English, Polish, Spanish)  |
| Arlington Heights | Our Lady of the Wayside  |
| Orland Park | Our Lady of the Woods  |
| Chicago | Our Lady of Victory  |
| Chicago | Passionist Fathers Monastery  |
| Berwyn | Poor Souls (National Shrine) (English, Latin)  St. Odilo Church |
| Lake Villa | Prince of Peace  |
| Chicago | Providence of God (Spanish)  |
| Chicago | Queen of All Saints (Minor Basilica)  |
| Chicago | Queen of Angels  |
| North Chicago | Queen of Peace  Most Blessed Trinity Parish |
| Elk Grove Village | Queen of the Rosary  |
| Chicago | Queen of the Universe (Spanish, English)  |
| Chicago | Resurrection (Spanish)  |
| Chicago | Sacred Heart (Shrine) (Polish)  |
| Chicago | Sacred Heart  |
| Chicago | Sacred Heart (Croatian)  |
| Melrose Park | Sacred Heart  |
| Palos Hills | Sacred Heart  |
| Winnetka | Sacred Heart  |
| Stone Park | Sacred Heart at Casa Italia  |
| Chicago | St. Adalbert (Spanish, Polish)  |
| Chicago | St. Adrian (Spanish, English)  |
| Chicago | St. Agatha  |
| Chicago | St. Agnes of Bohemia (English, Spanish)  |
| Chicago | St. Ailbe  |
| Burbank | St. Albert the Great (English, Polish)  |
| Palos Heights | St. Alexander  |
| Chicago | St. Aloysius (Spanish)  |
| Chicago | St. Alphonsus (English, German)  |
| Lemont | St. Alphonsus  |
| Prospect Heights | St. Alphonsus Liguori  |
| Chicago | St. Ambrose  |
| Waukegan | St. Anastasia  |
| Chicago | St. Andrew  |
| Calumet City | St. Andrew the Apostle (English, Latin)  |
| Chicago | St. Ann (Spanish, Polish)  |
| Barrington | St. Anne  |
| Chicago | St. Anne (National Shrine)  Church of Our Lady of Fatima |
| Chicago | St. Anselm  |
| Hanover Park | St. Ansgar  |
| Chicago | St. Anthony (English, Spanish)  |
| Cicero | St. Anthony (Spanish, Lithuanian)  |
| Evanston | St. Athanasius  |
| Midlothian | St. Augustine  |
| Brookfield | St. Barbara  |
| Chicago | St. Barbara  |
| Chicago | St. Barnabas  |
| Chicago | St. Bartholomew (English, Spanish)  |
| Chicago | St. Basil–Visitation (English, Spanish)  |
| Schiller Park | St. Beatrice  |
| Ingleside | St. Bede  |
| Chicago | St. Bede the Venerable (English, Spanish)  |
| Chicago | St. Benedict  |
| Chicago | St. Benedict the African-East  |
| Chicago | St. Benedict the African-West  |
| Evergreen Park | St. Bernadette  |
| Forest Park | St. Bernardine  |
| Argo | St. Blase (Polish, Spanish)  |
| Chicago | St. Bonaventure  |
| Chicago | St. Bride  |
| Chicago | St. Bronislava (Spanish)  |
| Chicago | St. Bruno (Polish, English)  |
| Chicago | St. Cajetan  |
| Chicago | St. Camillus (Polish, English)  |
| Glenview | St. Catherine Laboure  |
| Oak Lawn | St. Catherine of Alexandria  |
| Oak Park | St. Catherine of Siena–St. Lucy  |
| Mount Prospect | St. Cecilia  |
| Elmwood Park | St. Celestine  |
| Melrose Park | St. Charles Borromeo (Spanish)  |
| Chicago | St. Christina  |
| Chicago | St. Clare of Montefalco (Spanish, English)  |
| Chicago | St. Clement  |
| La Grange | St. Cletus  |
| Chicago | St. Clotilde  |
| Rolling Meadows | St. Colette  |
| Chicago | St. Columba  |
| Chicago | St. Columbanus  |
| Chicago | St. Constance (Polish)  |
| Chicago | St. Cornelius  |
| River Grove | St. Cyprian  |
| Brookfield | Sts. Cyril and Methodius (Czech)  |
| Lemont | Sts. Cyril and Methodius  |
| Oak Forest | St. Damian  |
| Chicago | St. Daniel the Prophet (Polish, English)  |
| Chicago | St. Denis  |
| Waukegan | St. Dismas  |
| Hillside | St. Domitilla  |
| Chicago | St. Dorothy  |
| Oak Park | St. Edmund  |
| Arlington Heights | St. Edna  |
| Chicago | St. Edward  |
| Chicago | St. Elizabeth  |
| Orland Hills | St. Elizabeth Seton  |
| Mount Prospect | St. Emily  |
| Chicago | St. Eugene  |
| Maywood | St. Eulalia  |
| Bridgeview | St. Fabian (Polish, English)  |
| Winnetka | Sts. Faith, Hope, and Charity  |
| Chicago | St. Felicitas  |
| Chicago | St. Ferdinand (Polish)  |
| Chicago | St. Florian (English, Spanish)  |
| Cicero | St. Frances of Rome (Spanish)  |
| Chicago | St. Frances Xavier Cabrini (National Shrine)  |
| Chicago | St. Francis Borgia (English, Polish)  |
| Chicago | St. Francis de Sales  |
| Lake Zurich | St. Francis de Sales  |
| Chicago | St. Francis of Assisi  |
| Chicago | St. Francis of Assisi (Spanish)  |
| Orland Park | St. Francis of Assisi  |
| La Grange | St. Francis Xavier  |
| Wilmette | St. Francis Xavier  |
| Chicago | St. Gabriel  |
| Chicago | St. Gall (Spanish)  |
| Chicago | St. Genevieve  |
| Chicago | St. George (English, Spanish)  |
| Tinley Park | St. George  |
| Oak Lawn | St. Gerald  |
| Oak Lawn | St. Germaine  |
| Chicago | St. Gertrude  |
| Franklin Park | St. Gertrude (English, Polish, Spanish)  |
| Evergreen Park | St. Gianna Molla  |
| Grayslake | St. Gilbert  |
| Oak Park | St. Giles  |
| Chicago | St. Gregory the Great  |
| Chicago | St. Hedwig (Polish, Spanish)  |
| Chicago | St. Helen (Polish)  |
| Chicago | St. Helena of the Cross  |
| Chicago | St. Henry (Vietnamese, English)  |
| Chicago | St. Hilary  |
| Hoffman Estates | St. Hubert  |
| Lyons | St. Hugh  |
| Chicago | St. Hyacinth (Minor Basilica, Parish) (Polish)  Basilica Św. Jacka |
| Chicago | St. Ignatius  |
| Niles | St. Isaac Jogues  |
| Chicago | St. Ita  |
| Arlington Heights | St. James  |
| Chicago | St. James (Polish)  |
| Chicago | St. James  |
| Chicago | St. James  Former Archbishop Quigley Preparatory Seminary |
| Highwood | St. James  |
| Lemont | St. James at Sag Bridge  |
| Chicago | St. Jane de Chantal (English, Polish)  |
| Chicago | St. Jerome  |
| Chicago | St. Jerome (Croatian, English)  |
| Chicago | St. Joachim  |
| Evanston | St. Joan of Arc  |
| Chicago | St. John Berchmans  |
| Chicago | St. John Bosco (Spanish)  |
| Niles | St. John Brebeuf (English, Polish)  |
| Chicago | St. John Cantius (Latin)  |
| Chicago | St. John de la Salle  |
| Chicago | St. John Fisher  |
| Western Springs | St. John of the Cross  |
| Streamwood | St. John the Evangelist  |
| Northlake | St. John Vianney (Spanish, Latin)  |
| Chicago | St. Josaphat  |
| Chicago | St. Joseph  |
| Chicago | St. Joseph (Spanish, Polish)  |
| Chicago | St. Joseph (Seminary)  |
| Homewood | St. Joseph  |
| Libertyville | St. Joseph  |
| Round Lake | St. Joseph  |
| Summit | St. Joseph (English, Spanish, Polish)  |
| Wilmette | St. Joseph  |
| Wheeling | St. Joseph the Worker  |
| Arlington Heights | San Juan Diego  |
| Chicago | St. Jude (National Shrine) (Spanish)  Our Lady of Guadalupe Church |
| Elk Grove Village | St. Julian Eymard  |
| Chicago | St. Juliana  |
| Tinley Park | St. Julie Billiart  |
| Chicago | St. Kevin (English, Spanish)  |
| Chicago | St. Kilian  |
| Chicago | St. Ladislaus (Polish)  |
| Skokie | St. Lambert  |
| Berwyn | St. Leonard  |
| Oak Lawn | St. Linus  |
| Oak Lawn | St. Louis de Montfort  |
| La Grange Park | St. Louise de Marillac  |
| Chicago | Santa Lucia–Santa Maria Incoronata  |
| River Forest | St. Luke  |
| Chicago | St. Malachy–Precious Blood (English, Spanish)  |
| Schaumburg | St. Marcelline  |
| Chicago | St. Margaret Mary  |
| Chicago | St. Margaret of Scotland  |
| Chicago | Santa Maria Addolorata (Spanish)  |
| Mundelein | Santa Maria del Popolo  Church of Our Lady of the People |
| Schiller Park | St. Maria Goretti  |
| Chicago | St. Mark (Spanish)  |
| Morton Grove | St. Martha  |
| Chicago | St. Martin de Porres  |
| Buffalo Grove | St. Mary  |
| Chicago | St. Mary  |
| Des Plaines | St. Mary  |
| Evanston | St. Mary  |
| Lake Forest | St. Mary  |
| Riverside | St. Mary  |
| Chicago | St. Mary, Star of the Sea  |
| Chicago | St. Mary Magdalene (English, Spanish)  |
| Berwyn | St. Mary of Celle  |
| Cicero | St. Mary of Czestochowa (Polish, English)  |
| Chicago | St. Mary of Perpetual Help  |
| Chicago | St. Mary of the Angels (Polish, Spanish)  |
| Mundelein | St. Mary of the Annunciation  |
| Chicago | St. Mary of the Assumption  |
| Chicago | St. Mary of the Lake  |
| Chicago | St. Mary of the Woods  |
| Indian Creek | St. Mary of Vernon  |
| Schaumburg | St. Matthew  |
| Chicago | St. Matthias  |
| Libertyville | St. Maximilian Kolbe (National Shrine)  |
| Chicago | St. Michael  |
| Chicago | St. Michael (English, Spanish)  |
| Orland Park | St. Michael  |
| Chicago | St. Michael the Archangel (English, Spanish)  |
| Chicago | St. Monica  |
| Evanston | St. Nicholas  |
| Chicago | St. Nicholas of Tolentine (Spanish)  |
| Northbrook | St. Norbert  |
| Chicago | St. Pancratius (Spanish)  |
| Chicago | St. Pascal  |
| Hickory Hills | St. Patricia  |
| Chicago | St. Patrick  |
| Lake Forest | St. Patrick  |
| Lemont | St. Patrick  |
| Wadsworth | St. Patrick  |
| Chicago | St. Paul (English, Latin)  |
| Des Plaines | St. Paul Chong Ha Sang (Korean)  |
| Park Ridge | St. Paul of the Cross  |
| Gurnee | St. Paul the Apostle  |
| Antioch | St. Peter  |
| Skokie | St. Peter  |
| Volo | St. Peter (Latin)  |
| Chicago | Sts. Peter and Paul  |
| Bartlett | St. Peter Damian  |
| Chicago | St. Peter’s in the Loop (Shrine)  Shrine of St. Anthony |
| Chicago | St. Philip Neri  |
| Northfield | St. Philip the Apostle  |
| Chicago | St. Philomena (Spanish)  |
| Chicago | St. Pius V (Shrine) (Spanish)  Dominican Shrine of St. Jude Thaddeus |
| Stickney | St. Pius X  |
| Chicago | St. Priscilla (Polish)  |
| Chicago | St. Procopius (Spanish, Croatian)  |
| Old Mill Creek | St. Raphael the Archangel  |
| Mount Prospect | St. Raymond de Penafort  |
| Chicago | St. Rene Goupil  |
| Chicago | St. Richard (English, Polish)  |
| Chicago | St. Rita of Cascia (Spanish)  |
| Chicago | St. Rita of Cascia of the Midwest (Shrine)  |
| Chicago | St. Robert Bellarmine  |
| Chicago | St. Roman (Spanish)  |
| Harwood Heights | St. Rosalie (Polish)  |
| Chicago | St. Sabina  |
| Bellwood | St. Simeon  |
| Chicago | St. Simon the Apostle (Spanish, Slovak)  |
| Chicago | St. Stanislaus Bishop and Martyr (Polish, English)  |
| Chicago | St. Stanislaus Kostka (Polish, Spanish)  |
| Tinley Park | St. Stephen, Deacon and Martyr  |
| Chicago | St. Stephen King of Hungary (Hungarian)  |
| Des Plaines | St. Stephen Protomartyr  |
| Chicago | St. Sylvester (Spanish)  |
| Chicago | St. Symphorosa  |
| Chicago | St. Tarcissus  |
| Chicago | St. Teresa of Avila  |
| Alsip | St. Terrence  |
| Chicago | St. Thaddeus  |
| Chicago | St. Thecla  |
| Palatine | St. Theresa  |
| Chicago | St. Therese (Chinese)  聖德力華人天主教堂 |
| Mount Prospect | St. Thomas Becket (Polish, English)  |
| Chicago | St. Thomas More (English, Latin)  |
| Chicago | St. Thomas of Canterbury  |
| Palatine | St. Thomas of Villanova  |
| Chicago | St. Thomas the Apostle  |
| Chicago | St. Timothy  |
| Chicago | St. Turibius (Spanish, Polish)  |
| Flossmoor | St. Veronica  |
| Chicago | St. Viator  |
| Chicago | St. Vincent de Paul  |
| River Forest | St. Vincent Ferrer  |
| Chicago | St. Walter  |
| Chicago | St. Wenceslaus (Polish, Spanish, English)  |
| Chicago | St. William  |
| Des Plaines | St. Zachary  |
| Wauconda | Transfiguration (English, Polish)  |
| Chicago | Transfiguration of Our Lord  |
| Chicago | (Airports Chaplaincy of Midway Airport) (Chapel)  |
| Chicago | (Airports Chaplaincy of O’Hare Airport) (Chapel)  |
| Cities | Other Churches Within the Diocesan Territory (15)  |
| Palatine | Immaculate Conception (Ukrainian)  |
| Bellwood | Mar Thoma Shleeha (Cathedral) (Syro-Malabar)  |
| Northbrook | Mart Maryam (Chaldean)  |
| Palos Park | Nativity of the Blessed Virgin Mary (Ukrainian)  |
| Maywood | Sacred Heart (Syro-Malabar)  |
| Chicago | St. Ephrem (Chaldean)  |
| Northlake | St. John the Baptist (Greek-Melkite)  |
| Chicago | St. Joseph the Betrothed (Ukrainian)  |
| Evanston | St. Mary (Syro-Malankara)  |
| Niles | St. Mary (Syro-Malabar)  |
| Northbrook | St. Mary Virgin Immaculate (Chapel) (Syriac)  |
| Chicago | St. Michael (Ukrainian)  |
| Chicago | St. Nicholas (Cathedral) (Ukrainian)  |
| Chicago | Sts. Peter and Paul (Romanian)  |
| Chicago | Sts. Volodymyr and Olha (Ukrainian)  |