Education (B200) IRS Verified DX Registered 990 on File

MARY INSTITUTE AND SAINT LOUIS COUNTRY DAY SCHOOL

EIN: 43-0653366 · SAINT LOUIS, MO 63124-1326 · United States · FY 2025 Data

3 out of 5 59 / 100 Based on 2+ years of filings

Financial strength (30%) 86/100

Reliability (20%) 55/100

Effectiveness (25%) 88/100

Impact (25%) No data yet

Financial data: FY 2025 · Scored 9/13/2026

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CharityAI™ Score

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Financial Overview — FY 2025

$78.6M

Total Revenue

$52.5M

Total Expenses

$284.5M

Net Assets

562

Employees

Revenue Sources

Expense Breakdown

Program Expense Ratio 82.2%

Fundraising Efficiency 4581.5%

Operating Reserve 65.03x

Liability-to-Asset 5.1%

Revenue Diversification 56.4%

Executive Compensation $1.0M

Compared with Peers

FY 2025

Compared with 1,600 similar organizations (United States, Education, $10M–$100M in expenses), FY 2025.

This organization Middle half of peers (P25–P75) Peer median

Ratio	This org	Peer median	Position (P10 → P90)
Program expense ratio Program expenses / total expenses · higher is better	82.2%	84.4%	P10P90	Below median
Admin expense ratio Management and general / total expenses · lower is better	15.3%	13.6%	P10P90	Below median
Fundraising expense ratio Fundraising expenses / total expenses · lower is better	2.6%	0.5%	P10P90	Below median
Fundraising efficiency Fundraising expenses / gross fundraising income · lower is better	4581.5%	546.1%	P10P90	Bottom quarter
Operating reserve Months of expenses covered by net assets · higher is better	65.0 mo	10.5 mo	P10P90	Top quarter
Liabilities to assets Total liabilities / total assets · lower is better	5.1%	32.5%	P10P90	Top quarter
Revenue concentration Share of revenue from the largest source · lower is better	56.4%	88.2%	P10P90	Top quarter
Revenue growth Year over year revenue growth	13.4%	5.8%	P10P90
Expense growth Year over year expense growth	2.4%	5.7%	P10P90
Surplus margin Surplus as a share of revenue	33.2%	3.2%	P10P90

Financial History

Year	Revenue	Expenses	Net Assets	Program %	Staff
2025	$78.6M	$52.5M	$284.5M	82.2%	562
2024	$69.3M	$51.3M	$240.6M	82.5%	569
2023	$46.1M	$48.5M	$208.4M	82.1%	539
2022	$42.9M	$46.0M	$199.9M	81.4%	525
2021	$40.5M	$45.0M	N/A	—	431

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Organization Details

EIN: 43-0653366
State: MO
City: SAINT LOUIS
ZIP: 63124-1326
Classification: B200
Category: Education
Rating: 3★
Coverage: A
Last Updated: Aug 2026
IRS Ruling Year
Foundation Code: 11
Form 990: On File

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CharityAI™ rates charities from 0 to 100 using public filings (IRS Form 990 and the equivalent registries outside the US) together with the information the charity itself provides on DonationX. Ratings are recalculated every quarter, without human bias, and shown as stars.

Four pillars

Financial strength30%

Program expense ratio, fundraising efficiency, operating reserves, liabilities and revenue diversification, compared with similar organizations.

Reliability20%

Standing with the registry, filing history, verification and how complete the profile is.

Effectiveness25%

How much goes to programs and how consistently the organization delivers them.

Impact25%

The outcomes the charity reports on DonationX: people served, cost per service and results.

Stars

★★★★★ 80–100 ★★★★☆ 60–79 ★★★☆☆ 40–59 ★★☆☆☆ 20–39 ★☆☆☆☆ 1–19

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