Tax-exempt organization ยท Files a Form 5500
MARY INSTITUTE AND SAINT LOUIS COUNTRY DAY SCHOOL
101 N WARSON RD, SAINT LOUIS, MO 63124-1326
EIN
43-0653366
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Contributions are deductible
IRS · 2026-09
Foundation classification
School
IRS · 2026-09
IRS ruling date
1949-07
IRS · 2026-09
NTEE code
B200
IRS · 2026-09
Latest tax period on file
2025-06
IRS · 2026-09
Revenue (latest 990)
$78,648,624
IRS · 2026-09
Assets (latest 990)
$299,823,237
IRS · 2026-09
Benefit plan 550, 2024 filing
MARY INSTITUTE AND SAINT LOUIS COUNTRY DAY SCHOOL EMPLOYEE BENEFIT PLAN
DOL · 2025-11-20
Participants (start of year)
270
DOL · 2025-11-20
Plan features
code 4B4D4E4H4Q
DOL · 2025-11-20
Plan type
Single-employer plan
DOL · 2025-11-20
Business code (NAICS)
611000
DOL · 2025-11-20
Benefit plan 1, 2024 filing
MARY INSTITUTE AND SAINT LOUIS COUNTRY DAY SCHOOL DEFINED CONTRIBUTION RETIREMENT PLAN
DOL · 2025-11-03