| Subject | QS | THE | ARWU | U.S. News |
|---|---|---|---|---|
| Agriculture & Forestry | #7 | — | #51-75 | #47 |
| Veterinary Science | #10 | — | #38 | — |
| Law | — | — | #45 | — |
| Mechanical & Aerospace Engineering | #151-200 | — | #51-75 | — |
| Statistics | #151-200 | — | #51-75 | — |
| Communication & Media | — | — | #51-75 | — |
| Hospitality & Tourism | — | — | #51-75 | — |
| Linguistics | #101-150 | — | — | — |
| Anatomy & Physiology | #101-200 | — | — | — |
| Earth & Geosciences | #151-200 | — | #101-150 | #353 |
| Environmental Science | #201-250 | — | #101-150 | #191 |
| Education | #201-250 | #201-250 | #101-150 | — |
| Psychology | #301-350 | #201-250 | #101-150 | #287 |
| Business & Management | #551-600 | — | #101-150 | — |
| Metallurgical Engineering | — | — | #101-150 | — |
| Sociology | — | — | #101-150 | — |
| Food Science & Technology | — | — | #151-200 | #146 |
| Civil Engineering | #201-275 | — | #151-200 | #182 |
| Automation & Control | — | — | #151-200 | — |
| Water Resources | — | — | #151-200 | — |
| Biotechnology | — | — | #151-200 | #159 |
| Accounting & Finance | — | — | #151-200 | — |
| Biological Sciences | #201-250 | — | #201-300 | #173 |
| Materials Science | #201-250 | — | #201-300 | #236 |
| Chemistry | #301-350 | — | #201-300 | #344 |
| Physics & Astronomy | #301-350 | — | #201-300 | #222 |
| Electrical & Electronic Engineering | #351-400 | — | #201-300 | #413 |
| Computer Science | #401-450 | #201-250 | #401-500 | #418 |
| Energy Science & Engineering | — | — | #201-300 | #375 |
| Arts & Humanities | — | #401-500 | — | #247 |
| Chemical Engineering | #251-300 | — | #401-500 | — |
| Life Sciences & Medicine | #251 | #251-300 | — | — |
| Economics & Econometrics | #351-400 | — | #301-400 | #262 |
| Mathematics | #401-450 | — | #401-500 | #272 |
| Engineering & Technology | #300 | #301-400 | — | #304 |
| Natural / Physical Sciences | #360 | #301-400 | — | — |
| Business & Economics | — | #301-400 | — | — |
| Social Sciences & Management | — | #301-400 | — | — |
| Public Health | — | — | — | #376 |
| Medicine / Clinical | #601-650 | — | — | — |
Iowa State University ranks #449 in QS 2026, #450 in THE 2026, #401-500 in ARWU 2025 and #380 in U.S. News 2026. Its consensus position across the major rankings is #428 globally.