Catholic · IL

Saint Mary Catholic Church

525 EAST 4TH STREET, Alton, IL 62002

About Saint Mary Catholic Church


Saint Mary Catholic Church is a Catholic church located at 525 EAST 4TH STREET, Alton, IL, 62002. You can reach Saint Mary Catholic Church at +16184654284.

Patron saint of Saint Mary Catholic Church


Saint Mary

Mary (the Virgin Mary)

Feast day: Aug 15 (Assumption)

Read about Saint Mary on Wikipedia →

Other churches named after Saint Mary


5 other churches named in honor of Saint Mary are indexed in Churches List. The most-reviewed of those appear below.

From Wikipedia

St. Mary's Russian Orthodox Church, Benld, Illinois

St. Mary's Russian Orthodox Church was a church in Benld, Illinois until 2010. Opened in 1907 by Carpatho-Rusyn immigrants, it was converted to the Holy Dormition Monastery in 2010. The church was founded to serve the immigrant mining community. The church is located on Route 66.

Read the full article on Wikipedia →

Where is Saint Mary Catholic Church located?


Saint Mary Catholic Church is located at 525 EAST 4TH STREET, Alton, IL, 62002. The building sits at coordinates 38.89108, -90.17784, placing it in Alton, IL 62002.

Location is approximate — drawn from the public street address.

Parking within ¼ mile
Coffee & a bite afterward

Nearby places drawn from OpenStreetMap, Jun 9, 2026.

The neighborhood around Saint Mary Catholic Church


The ZIP code 62002 area around Saint Mary Catholic Church is home to 30,166 residents with a median household income of $55,041 and a median age of 41.4 years, according to the US Census Bureau's 2022 American Community Survey 5-year estimates.

30,166 Residents in ZIP 62002
41.4 Median age
$55,041 Median household income

US Census Bureau, American Community Survey 2022 five-year estimates.

What to expect at a service at Saint Mary Catholic Church


Roman Catholic parishes follow a structured liturgy called the Mass, celebrated worldwide in the same order.

  • Mass lasts about an hour and includes Scripture readings, a homily, hymns, and Holy Communion.
  • Visitors are welcome. Only baptized Catholics in good standing receive Communion; others come forward with arms crossed for a blessing.
  • Dress is modest but not formal — business casual is typical for Sunday Mass.

Generalized notes for first-time visitors. Individual churches vary — when in doubt, ask a greeter at the door.

Your Sunday at Saint Mary Catholic Church


Coffee after Decaro’s · 390 ft

Questions and answers about Saint Mary Catholic Church


What denomination is Saint Mary Catholic Church?
This church is part of the Catholic tradition.
Where is Saint Mary Catholic Church located?
Saint Mary Catholic Church is located at 525 EAST 4TH STREET, Alton, IL, 62002.
Who is the patron saint of Saint Mary Catholic Church?
Saint Mary (Mary (the Virgin Mary)). Feast day: Aug 15 (Assumption).

Photographs of Saint Mary Catholic Church


Photographs via Wikimedia Commons. Click through for author and licence.

Visitor notes about Saint Mary Catholic Church


Short, text-only reflections left by visitors. No ratings, no photographs — by editorial policy.

No notes yet for this church. Visitor notes are coming soon — for now, write to editors@churcheslist.com and we'll post your reflection by hand.

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Other churches in Alton, IL

Other churches on the same streets — every tradition counted once.
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Catholic churches near Saint Mary Catholic Church

Catholic churches in IL
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Churches within walking and driving distance of Saint Mary Catholic Church

The five nearest churches — any tradition — measured from this door.