Miss Porter's School looks durable. The school holds 5.7 years of operating cushion, typical for a residential school of this scale. Revenue is unusually diversified at 52% tuition-dependent (peer median 73%), with the endowment and gifts carrying real weight. Staff compensation runs 46% of expenses, leaner than the peer median. NACUBO Composite Financial Index: 8.9 / 10, strong.
Miss Porter's School runs only 52% tuition-dependent — unusually diversified for an independent school. Endowment payout and contributions carry meaningful weight in the operating budget.
Miss Porter's School reported $43.2M in revenue against $36.6M in expenses in fiscal year 2023, the most recent filing on record. Net assets stood at $207.0M — about 5.66x annual operating expense.
Operating margin landed at 15.4%, with 52.1% of revenue coming from tuition. Among same-size peers, that puts Miss Porter's School at the p77 on operating margin.
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Why “revenue scale” and not “endowment per student”: independent-school 990s don’t carry per-school enrollment, and NCES PSS coverage is partial, so we cannot divide endowment by a verified student count for every school. The bar above is each school’s latest reported total revenue. True endowment-per-student is scheduled for v1.1+ once Schedule D Part V parsing lands.
Peers are scored by similarity along three equal-weighted dimensions: size cohort (Form 990 employee count + max-revenue tier, a proxy for student enrollment, which the 990 does not carry), geographic region (eight-region grouping), and association overlap (NAIS, NBOA, regional councils). We rank the top 20 nearest peers and chart the first 12 by latest reported revenue. Values are the school’s most recently filed total revenue on IRS Form 990.