Immaculate Conception School in Union, MO offers co–ed Catholic education for grades PK through 8 in a town–based setting.
Founded in 1902, the school enrolls approximately 230 students with a student–teacher ratio of 14:1 supported by 17 teachers.
The student population includes 1.59% students of color, reflecting diversity within the school community.
As a Catholic elementary and middle school, it serves families seeking religious affiliation in Union, Missouri.
Immaculate Conception School ranks among the top 20% of Missouri private schools based on founding year, highlighting its long–standing presence.
Quick Facts (2026)
- Top-Ranked MO School
- Grades: Prekindergarten-8
- Enrollment: 230 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
Immaculate Conception School ranks among the top 20% of private schools in Missouri for:
Category
Attribute
School History
School Overview
Student Body
Total Students
230 students
Student Body Type
Co-ed
% Students of Color
2%
State avg.: 21%
Students by Grade
Academics and Faculty
Total Classroom Teachers
17 teachers
Student-Teacher Ratio
14:1
National avg.:
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Application URL
School Notes
- School Motto: Respect. Responsibility. Reverence.
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
What schools are Immaculate Conception School often compared to?
Immaculate Conception School is often viewed alongside schools like St. Gertrude School by visitors of our site.
What is Immaculate Conception School's ranking?
Immaculate Conception School ranks among the top 20% of private schools in Missouri for: Oldest founding date.
When is the application deadline for Immaculate Conception School?
The application deadline for Immaculate Conception School is rolling (applications are reviewed as they are received year-round).
Related Schools
Show me:
Popular comparisons: Immaculate Conception School vs. St. Gertrude School
People that viewed Immaculate Conception School also viewed these schools: Sacred Heart Elementary School, St. Paul Catholic School, Saint Joseph School, St. Peter's Catholic School and Assumption Parish School.
The nearest high school, elementary school and preschool to Immaculate Conception School is Crosspoint Christian School (4.0 miles away)
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Show me:
School
Location
Miles
Quick Facts
350 E 4th St
Eureka, MO 63025
(636) 938-4602
Eureka, MO 63025
(636) 938-4602
21.3 miles
Gr: PK-8 | 205 students Tuition listed
St. Paul Catholic School
(Catholic)
465 New Smizer Mill Rd
Fenton, MO 63026
(636) 343-4333
Fenton, MO 63026
(636) 343-4333
30.6 miles
Gr: PK-8
Saint Joseph School
(Catholic)
6024 Old Antonia Rd
Imperial, MO 63052
(636) 464-9027
Imperial, MO 63052
(636) 464-9027
32.9 miles
Gr: PK-8 | 288 students Avg. class size: 20 students Tuition listed
St. Peter's Catholic School
(Catholic)
215 N Clay Ave
Saint Louis, MO 63122
(314) 821-0460
Saint Louis, MO 63122
(314) 821-0460
33.8 miles
Gr: PK-8 | 495 students
Assumption Parish School
(Catholic)
4709 Mattis Road
Saint Louis, MO 63128
(314) 487-6520
Saint Louis, MO 63128
(314) 487-6520
35.2 miles
Gr: NS-8 | 309 students Avg. class size: 22 students Sports: 7 | Extracurrculars: 3 Tuition & acceptance rate listed
School
Location
Miles
Quick Facts
Valle Catholic Schools
(Catholic)
49 Dubourg Place
Sainte Genevieve, MO 63670
(573) 883-7496
Sainte Genevieve, MO 63670
(573) 883-7496
61.4 miles
Gr: K-12 | 363 students Tuition listed
School
Location
Miles
Quick Facts
350 E 4th St
Eureka, MO 63025
(636) 938-4602
Eureka, MO 63025
(636) 938-4602
21.3 miles
Gr: PK-8 | 205 students Tuition listed
St. Paul Catholic School
(Catholic)
465 New Smizer Mill Rd
Fenton, MO 63026
(636) 343-4333
Fenton, MO 63026
(636) 343-4333
30.6 miles
Gr: PK-8
Saint Joseph School
(Catholic)
6024 Old Antonia Rd
Imperial, MO 63052
(636) 464-9027
Imperial, MO 63052
(636) 464-9027
32.9 miles
Gr: PK-8 | 288 students Avg. class size: 20 students Tuition listed
St. Peter's Catholic School
(Catholic)
215 N Clay Ave
Saint Louis, MO 63122
(314) 821-0460
Saint Louis, MO 63122
(314) 821-0460
33.8 miles
Gr: PK-8 | 495 students
Assumption Parish School
(Catholic)
4709 Mattis Road
Saint Louis, MO 63128
(314) 487-6520
Saint Louis, MO 63128
(314) 487-6520
35.2 miles
Gr: NS-8 | 309 students Avg. class size: 22 students Sports: 7 | Extracurrculars: 3 Tuition & acceptance rate listed
School
Location
Miles
Quick Facts
350 E 4th St
Eureka, MO 63025
(636) 938-4602
Eureka, MO 63025
(636) 938-4602
21.3 miles
Gr: PK-8 | 205 students Tuition listed
St. Paul Catholic School
(Catholic)
465 New Smizer Mill Rd
Fenton, MO 63026
(636) 343-4333
Fenton, MO 63026
(636) 343-4333
30.6 miles
Gr: PK-8
Saint Joseph School
(Catholic)
6024 Old Antonia Rd
Imperial, MO 63052
(636) 464-9027
Imperial, MO 63052
(636) 464-9027
32.9 miles
Gr: PK-8 | 288 students Avg. class size: 20 students Tuition listed
St. Peter's Catholic School
(Catholic)
215 N Clay Ave
Saint Louis, MO 63122
(314) 821-0460
Saint Louis, MO 63122
(314) 821-0460
33.8 miles
Gr: PK-8 | 495 students
Assumption Parish School
(Catholic)
4709 Mattis Road
Saint Louis, MO 63128
(314) 487-6520
Saint Louis, MO 63128
(314) 487-6520
35.2 miles
Gr: NS-8 | 309 students Avg. class size: 22 students Sports: 7 | Extracurrculars: 3 Tuition & acceptance rate listed
School
Location
Miles
Quick Facts
Crosspoint Christian School
(Christian)
51 Hwy M
Villa Ridge, MO 63089
(636) 742-5380
Villa Ridge, MO 63089
(636) 742-5380
4 miles
Gr: PK-12 | 133 students Avg. class size: 8 students Sports: 5 | Extracurrculars: 5 Tuition & acceptance rate listed
St. Gertrude School
(Catholic)
6520 State Road Yy
Washington, MO 63090
(636) 239-2347
Washington, MO 63090
(636) 239-2347
4 miles
Gr: PK-8 | 235 students
St. John The Baptist School ![St. John The Baptist School Photo]( "St. John The Baptist School Photo")
(Catholic)
5579 Gildehaus Rd
Villa Ridge, MO 63089
(636) 583-2392
Villa Ridge, MO 63089
(636) 583-2392
4.6 miles
Gr: PK-8 | 130 students Avg. class size: 15 students Sports: 3 | Extracurrculars: 3
Our Lady Of Lourdes Catholic School
(Catholic)
950 Madison Ave
Washington, MO 63090
(636) 239-5292
Washington, MO 63090
(636) 239-5292
6.9 miles
Gr: PK-8 | 409 students
Greenpark Christian Academy
Special Program Emphasis (Christian)
4531 Hwy 30
Robertsville, MO 63072
(636) 582-0571
Robertsville, MO 63072
(636) 582-0571
7.2 miles
Gr: PK-12 | 84 students Sports: 7
School
Location
Miles
Quick Facts
Crosspoint Christian School
(Christian)
51 Hwy M
Villa Ridge, MO 63089
(636) 742-5380
Villa Ridge, MO 63089
(636) 742-5380
4 miles
Gr: PK-12 | 133 students Avg. class size: 8 students Sports: 5 | Extracurrculars: 5 Tuition & acceptance rate listed
Greenpark Christian Academy
Special Program Emphasis (Christian)
4531 Hwy 30
Robertsville, MO 63072
(636) 582-0571
Robertsville, MO 63072
(636) 582-0571
7.2 miles
Gr: PK-12 | 84 students Sports: 7
St. Francis Borgia High School
(Catholic)
1000 Borgia Dr
Washington, MO 63090
(636) 239-7871
Washington, MO 63090
(636) 239-7871
7.2 miles
Gr: 9-12 | 427 students Avg. class size: 20 students Sports: 11 Tuition listed
Meramec Valley Christian School
(Baptist)
Po Box 566
Sullivan, MO 63080
(559) 696-7374
Sullivan, MO 63080
(559) 696-7374
18.9 miles
Gr: PK-11 | 43 students Tuition listed
17780 Mueller Road
Wildwood, MO 63038
(636) 324-7220
Wildwood, MO 63038
(636) 324-7220
20.7 miles
Gr: NS-12 | 377 students Avg. class size: 20 students Sports: 3 | Extracurrculars: 3 Tuition listed
School
Location
Miles
Quick Facts
Crosspoint Christian School
(Christian)
51 Hwy M
Villa Ridge, MO 63089
(636) 742-5380
Villa Ridge, MO 63089
(636) 742-5380
4 miles
Gr: PK-12 | 133 students Avg. class size: 8 students Sports: 5 | Extracurrculars: 5 Tuition & acceptance rate listed
St. Gertrude School
(Catholic)
6520 State Road Yy
Washington, MO 63090
(636) 239-2347
Washington, MO 63090
(636) 239-2347
4 miles
Gr: PK-8 | 235 students
St. John The Baptist School ![St. John The Baptist School Photo]( "St. John The Baptist School Photo")
(Catholic)
5579 Gildehaus Rd
Villa Ridge, MO 63089
(636) 583-2392
Villa Ridge, MO 63089
(636) 583-2392
4.6 miles
Gr: PK-8 | 130 students Avg. class size: 15 students Sports: 3 | Extracurrculars: 3
Our Lady Of Lourdes Catholic School
(Catholic)
950 Madison Ave
Washington, MO 63090
(636) 239-5292
Washington, MO 63090
(636) 239-5292
6.9 miles
Gr: PK-8 | 409 students
Greenpark Christian Academy
Special Program Emphasis (Christian)
4531 Hwy 30
Robertsville, MO 63072
(636) 582-0571
Robertsville, MO 63072
(636) 582-0571
7.2 miles
Gr: PK-12 | 84 students Sports: 7
School
Location
Miles
Quick Facts
Crosspoint Christian School
(Christian)
51 Hwy M
Villa Ridge, MO 63089
(636) 742-5380
Villa Ridge, MO 63089
(636) 742-5380
4 miles
Gr: PK-12 | 133 students Avg. class size: 8 students Sports: 5 | Extracurrculars: 5 Tuition & acceptance rate listed
St. Gertrude School
(Catholic)
6520 State Road Yy
Washington, MO 63090
(636) 239-2347
Washington, MO 63090
(636) 239-2347
4 miles
Gr: PK-8 | 235 students
St. John The Baptist School ![St. John The Baptist School Photo]( "St. John The Baptist School Photo")
(Catholic)
5579 Gildehaus Rd
Villa Ridge, MO 63089
(636) 583-2392
Villa Ridge, MO 63089
(636) 583-2392
4.6 miles
Gr: PK-8 | 130 students Avg. class size: 15 students Sports: 3 | Extracurrculars: 3
Our Lady Of Lourdes Catholic School
(Catholic)
950 Madison Ave
Washington, MO 63090
(636) 239-5292
Washington, MO 63090
(636) 239-5292
6.9 miles
Gr: PK-8 | 409 students
Greenpark Christian Academy
Special Program Emphasis (Christian)
4531 Hwy 30
Robertsville, MO 63072
(636) 582-0571
Robertsville, MO 63072
(636) 582-0571
7.2 miles
Gr: PK-12 | 84 students Sports: 7
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Miles
Quick Facts
(Math: 46% | Reading: 48%)
Rank:
Rank:
7/
Top 50%10
2 E Springfield
Union, MO 63084
(636) 583-3152
Union, MO 63084
(636) 583-3152
0.2 miles
Gr: PK-5 | 643 students Student-Teacher Ratio: 11:1 Minority enrollment: 11%
(Math: 48% | Reading: 40%)
Rank:
Rank:
6/
Top 50%10
503 W End
Union, MO 63084
(636) 583-5855
Union, MO 63084
(636) 583-5855
0.3 miles
Gr: 6-8 | 704 students Student-Teacher Ratio: 15:1 Minority enrollment: 9%
Special Education School
(Math: ≤20% | Reading: ≤20%)
Rank:
Rank:
1/
Bottom 50%10
300 Autumn Hill Dr
Union, MO 63084
(636) 583-5959
Union, MO 63084
(636) 583-5959
0.7 miles
Gr: K-12 | 32 students Student-Teacher Ratio: 5:1 Minority enrollment: 6%
(Math: 43% | Reading: 64%)
Rank:
Rank:
8/
Top 30%10
1217 West Main
Union, MO 63084
(636) 583-2513
Union, MO 63084
(636) 583-2513
1.2 miles
Gr: 9-12 | 956 students Student-Teacher Ratio: 15:1 Minority enrollment: 8%
(Math: 60-64% | Reading: 60-64%)
Rank:
Rank:
10/
Top 10%10
1581 Clearview Road
Union, MO 63084
(636) 231-2500
Union, MO 63084
(636) 231-2500
2.2 miles
Gr: K-6 | 295 students Student-Teacher Ratio: 15:1 Minority enrollment: 8%
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