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Adelphi University and Rensselaer Polytechnic Institute are both private nonprofit institutions — Adelphi University in Garden City, NY and Rensselaer Polytechnic Institute in Troy, NY. This page compares published admission, cost, and outcome data from federal sources so you can see the tradeoffs before you add either school to your list.
Garden City, NY · Private
Acceptance rate: 65.9%
Undergrad enrollment: 5,276
Tuition: $49,110/year
Student-faculty ratio: 12.0:1
Graduation rate: 67.2%
Top programs: Health professions, Biological sciences, Business and marketing
Best for: Students who want a private campus in Garden City, NY with published program strength in Health professions and Biological sciences.
Troy, NY · Private
Acceptance rate: 63.5%
Undergrad enrollment: 5,714
Tuition: $64,081/year
Student-faculty ratio: 14.0:1
Graduation rate: 83.6%
Top programs: Engineering, Computer science, Biological sciences
Best for: Students who want a private campus in Troy, NY with published program strength in Engineering and Computer science.
| Factor | Adelphi University | Rensselaer Polytechnic Institute |
|---|---|---|
| Acceptance rate | 65.9% | 63.5% |
| SAT range (middle 50%) |
| 1120–1340 |
| 1375–1510 |
| ACT range (middle 50%) | 24–30 | 30–34 |
| Undergraduate enrollment | 5,276 | 5,714 |
| Out-of-state tuition | $49,110/year | $64,081/year |
| Average net price after aid | $30,783 | $36,228 |
| Graduation rate | 67.2% | 83.6% |
| Median earnings (10 years) | $75,482 | $102,051 |
| Student-faculty ratio | 12.0:1 | 14.0:1 |
| Institution type | Private nonprofit | Private nonprofit |
| Location | Garden City, NY | Troy, NY |
| Largest program areas | Health professions, Biological sciences, Business and marketing | Engineering, Computer science, Biological sciences |
Both schools admit a similar share of applicants (65.9% vs 63.5%). Adelphi University has a lower average net price after grant aid ($30,783 vs $36,228). Rensselaer Polytechnic Institute reports the higher graduation rate (83.6% vs 67.2%). Rensselaer Polytechnic Institute is the larger undergraduate campus (5,714 students). Use the free side-by-side comparison tool to weigh cost, program fit, location, and outcomes for your own list — and verify deadlines and requirements with each college.
Common questions when choosing between Adelphi University and Rensselaer Polytechnic Institute
Adelphi University has an acceptance rate of 65.9%; Rensselaer Polytechnic Institute is around 63.5%. Selectivity is only one factor — GPA, essays, major, and residency (for publics) all change the odds.
Adelphi University tuition is $49,110/year. Rensselaer Polytechnic Institute is $64,081/year. Compare net price after aid, not sticker price — especially for private schools and out-of-state publics.
Use College Decider's free comparison tool at /compare — add both schools to see tuition, acceptance rates, graduation outcomes, and more in one table.
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