Cross-verified directory record

Assumption Catholic School

203 W 3rd St · O'fallon, MO 63366

Visit official website Get directions Call (636) 240-4474

Roman Catholic

Grades PK–8 Elementary

Grade rangeGrades PK–8

Enrollment431 students

Student–teacher ratio13.7:1

School formatCoeducational

School overview

At a glance

Source-traceable

School type: Regular
Community setting: Suburb, large
School year: 177 days
School day: 8.41 hours
Library/media center: Available
NCES school ID: A1902645

Enrollment and staffing figures reflect the latest school year published by the cited source and may predate this directory’s current-status check. Confirm current tuition, admissions, academics, programs, accreditation and accessibility directly with the school.

Contact and location

Plan your next step

Address203 W 3rd St
O'fallon, MO 63366Open in Google Maps

Phone(636) 240-4474Call the school

Official websiteassumptionbvmschool.orgVisit website

Map data © OpenStreetMap contributors. The directions button opens Google Maps.

Live place information

Hours and visitor rating

Google Maps

Visitor ratingLoading current data…

Current hours statusLoading current data…Confirm special and holiday hours with the school.

Data provenance

Why this listing is here

Core institution record

NCES PSS 2023-24 supplied the name, available location fields and institution characteristics.

Map coordinates

NCES PSS 2021-22 school location was used to place this school on the map.

Current verification

Cross-checked against the NCEA member school locator on August 29, 2026.

NCEA Member School LocatorNational Catholic Educational Association · 2026 public locator Private School Universe Survey public-use fileNational Center for Education Statistics · 2021–22 Private School Universe Survey Catholic-school locator exportNational Center for Education Statistics · 2023-24

Dataset inclusion does not imply endorsement or accreditation. This independent site is not affiliated with the institution, a diocese or board, any government education agency, Catholic education directory, OpenStreetMap or Google.

Read the complete methodology