Geology, the study of Earth’s composition, structure, processes, and history, is one of the most consequential applied sciences in human civilization. Geologists and earth scientists map the resources that power economies, assess the hazards that threaten populations, monitor the climate systems that govern all life on Earth, and reconstruct the billions of years of planetary history written in rock. The discipline spans field observation, laboratory geochemistry, satellite remote sensing, and supercomputer climate modeling, demanding both physical intuition about processes that operate over billions of years and mathematical rigor in quantitative analysis.
Approximately 4,800 geology and earth science bachelor’s degrees are awarded annually under CIP 40.06 (Geological and Earth Sciences/Geosciences). This ranking evaluates 256 programs: the 255 CIP 40.06 programs meeting the threshold of 15 degrees over three years, plus Colorado School of Mines via the verified equivalent gate described below. Harvard University is absent because its Earth and Planetary Sciences concentration is not reported under any identifiable IPEDS geology CIP code.
On Colorado School of Mines
Colorado School of Mines (#4 in this ranking) is one of the premier geology-focused institutions in the United States, but its geology-track degrees are awarded under CIP 14.39 (Geological/Geophysical Engineering) rather than CIP 40.06. This is a classification choice that reflects Mines’ engineering-school identity, not any substantive difference in curriculum. Mines produced 37 NSF geological sciences doctoral alumni between 2015 and 2024, the ninth-highest raw count in the database, and its programs in geology, geophysics, geomechanics, hydrogeology, mining geology, and petroleum geology are nationally recognized.
To include Mines without compromising the ranking’s methodological consistency, College Transitions applies a verified equivalent gate: any institution with zero CIP 40.06 degrees but at least 30 CIP 14.39 degrees and at least 20 NSF geological sciences PhDs qualifies as a verified equivalent and receives full scoring. This gate captures exactly one institution in the country: Colorado School of Mines. Mines is scored on all five components using its CIP 14.39 degree count for Major Emphasis and Program Scale, and its CIP 14.39 Scorecard field earnings of $72,556 for Earnings & ROI (the highest field earnings of any program in the geology universe). It is labeled with an asterisk throughout this ranking.
On Harvard University
Harvard’s Earth and Planetary Sciences concentration is not scored in this ranking because Harvard does not report earth science degrees under any identifiable CIP code in IPEDS. Harvard’s completions data shows 5,507 total degrees across 36 CIP codes, with none corresponding to geology or earth sciences. The EPS concentration’s graduates are almost certainly aggregated into CIP 30.18 (Natural Sciences, General), a basket code that collapses multiple Harvard science concentrations. There is no defensible way to extract an EPS degree count from that bucket. Harvard has 22 NSF geological sciences doctoral alumni over the decade, a real but modest number. Its absence reflects a data limitation: without a degree count, Major Emphasis, Program Scale, and the denominator for the per-capita PhD calculation cannot be constructed.
How We Built the Ranking
| Component | Weight | Data Source / Notes |
| Major Emphasis | 12% | IPEDS Degree Completions (CIP 40.06; Mines uses CIP 14.39) |
| Program Scale | 13% | IPEDS Degree Completions (log) |
| Academic Rating | 30% | IPEDS / Common Data Set |
| Earnings & ROI (Tier 1) | 25% | Field earnings 55% + inst. 15% + ROI 20yr 15% + ROI 40yr 15% (51.3% coverage for CIP 40.06) |
| Earnings & ROI (Tier 2†) | 25% | Inst. earnings 55% + ROI 20yr 22.5% + ROI 40yr 22.5% (125 programs without field earnings) |
| PhD Productivity | 20% | NSF Survey of Earned Doctorates: “Geological sciences” |
The Tier 1 / Tier 2 boundary. Geology field-specific earnings coverage is 51.3 percent for CIP 40.06 programs, barely above the 50 percent threshold. For the 125 programs without geology-specific earnings, Tier 2 applies. Mines is Tier 1 because its CIP 14.39 field earnings ($72,556) are available in the Scorecard.
The Top 25
| Rank | Institution | State | Type | C4 | Score |
| 1 | Stanford University | CA | Private | T2† | 92.0 |
| 2 | Dartmouth College | NH | Liberal Arts | T2† | 90.7 |
| 3 | Bowdoin College | ME | Liberal Arts | T2† | 86.6 |
| 4 | Colorado School of Mines * | CO | Tech | T1 | 85.1 |
| 5 | University of Michigan-Ann Arbor | MI | Public | T1 | 84.8 |
| 6 | Colgate University | NY | Liberal Arts | T2† | 82.0 |
| 7 | Carleton College | MN | Liberal Arts | T2† | 81.3 |
| 8 | University of Pennsylvania | PA | Private | T2† | 81.2 |
| 9 | Washington and Lee University | VA | Liberal Arts | T2† | 80.7 |
| 10 | University of Pittsburgh | PA | Public | T1 | 80.0 |
| 11 | University of Washington-Seattle | WA | Public | T1 | 80.0 |
| 12 | University of Texas at Austin | TX | Public | T1 | 79.8 |
| 13 | Princeton University | NJ | Private | T2† | 78.4 |
| 14 | Bates College | ME | Liberal Arts | T2† | 78.3 |
| 15 | Lehigh University | PA | Private | T1 | 78.2 |
| 16 | University of California-Santa Cruz | CA | Public | T1 | 78.2 |
| 17 | Vanderbilt University | TN | Private | T2† | 77.9 |
| 18 | Yale University | CT | Private | T2† | 77.3 |
| 19 | University of California-Berkeley | CA | Public | T1 | 76.1 |
| 20 | Brown University | RI | Private | T1 | 76.0 |
| 21 | University of Chicago | IL | Private | T2† | 75.9 |
| 22 | University of Miami | FL | Private | T2† | 75.5 |
| 23 | Macalester College | MN | Liberal Arts | T2† | 74.5 |
| 24 | Whitman College | WA | Liberal Arts | T2† | 74.5 |
| 25 | Wellesley College | MA | Liberal Arts | T2† | 74.3 |
Table 1. Top 25 Undergraduate Geology Programs, 2026. † = Tier 2 C4. = CIP 14.39 verified equivalent. LAC = Liberal Arts College.*
Stanford University (#1, 92.0) leads the geology ranking on the strength of 96.1 Major Emphasis, 92.2 Program Scale (106 degrees), 85.3 Academic Rating, 99.7 Earnings & ROI (Stanford’s strong institutional outcomes, Tier 2), and 89.6 PhD Productivity (21 doctoral recipients). Stanford’s Doerr School of Sustainability, which integrates geological sciences, earth system science, and energy resources, creates a broad research environment for undergraduates.
Bowdoin College (#3, 86.6) achieves the highest Major Emphasis score in the dataset (99.2). Geology accounts for a larger share of total degrees at Bowdoin than at any other institution in the universe, including Colorado School of Mines. Bowdoin’s coastal Maine location, New England geological diversity, and undergraduate research culture centered on field observation create an environment well suited to students who want geology to define their undergraduate education.
Colorado School of Mines (#4, 85.1) is the most analytically important inclusion in this ranking. Mines scores a near-perfect 99.6 on Major Emphasis (geological engineering is close to the entirety of its degree output) and 97.1 on Program Scale (162 degrees over three years). Its Earnings & ROI score of 98.5 reflects the highest field earnings in the geology universe ($72,556, the CIP 14.39 geological engineering Scorecard figure for 55 graduates), institutional earnings of $97,335, and strong long-run ROI ($1.3M over 20 years, $3.3M over 40 years). Its PhD Productivity of 96.3 reflects 37 NSF geological sciences doctoral alumni at 6.3 per capita. The clearest drag is Academic Rating (55.4), reflecting Mines’ 18-to-1 student-faculty ratio, its 16 percent of classes under 20 students, and an admissions profile that is strong but below the elite private universities in the ranking. Mines is the definitive answer for students who want to study applied geological science in a technical institute where the discipline is central to institutional identity.
Carleton College (#7, 81.3) scores a near-perfect 98.9 on PhD Productivity, reflecting 42 geological sciences doctoral recipients at 20.3 per capita, the highest per-capita rate in the full dataset by a wide margin. Carleton’s geology program has produced more academic geoscientists per undergraduate than virtually any institution in the country, and the per-capita rate is among the highest in any field across the entire College Transitions ranking series.
What Separates the Best Programs?
Colorado School of Mines vs. the Liberal Arts Geology Programs
The presence of both Colorado School of Mines (#4) and Carleton College (#7) in the top 10 captures the real bifurcation in how excellent geology education is organized in the United States. Mines is engineering-oriented, large, and applied, optimized for careers in resource extraction, geotechnical engineering, and petroleum geology. Carleton is liberal-arts-oriented, small, and research-intensive, optimized for doctoral preparation in academic geoscience. Both are outstanding. The choice between them is not a quality choice but a values and career-direction choice.
The Liberal Arts College Geology Pipeline
Nine of the top 25 geology programs are liberal arts colleges: Dartmouth (#2), Bowdoin (#3), Colgate (#6), Carleton (#7), Washington and Lee (#9), Bates (#14), Macalester (#23), Whitman (#24), and Wellesley (#25). This is the highest LAC concentration of any STEM field in the College Transitions ranking series, reflecting the structural alignment between geology’s field-observation culture and the liberal arts mentorship model.
Whitman College (#24) scores 98.4 on Major Emphasis (geology is nearly the entirety of its science identity) and 92.4 on PhD Productivity (18 doctoral recipients at 11.5 per capita, the second-highest per-capita rate in the dataset). For a small college in rural Washington State, Whitman’s geology doctoral production rate is remarkable, second only to Carleton in the entire universe.
William & Mary: Consistent Doctoral Productivity
William & Mary (#26) appears just outside the top 25 with 33 NSF geological sciences doctoral alumni. At 8.0 per-capita geological sciences PhDs, W&M’s geology program reflects an undergraduate research culture that consistently sends students to doctoral study, a pattern that holds across several of its science and humanities programs.
Patterns, Themes, and What They Mean for Your Students
Field experience determines outcomes in geology more than in most STEM fields. The quality of field geology training, including rock mapping, structural measurement, stratigraphic section recording, and sample collection in diverse geological settings, directly predicts both graduate school competitiveness and industry readiness. Students should ask about required field courses, typical field trip destinations, and whether the program has a senior thesis or capstone with a field component. Programs at Dartmouth (New England and international field sites), Washington (Cascades and Pacific plate boundary), Texas (Hill Country, Permian Basin, Trans-Pecos), and Mines (Rocky Mountain and basin-and-range settings) provide unusually diverse field exposure.
The petroleum industry creates the highest-paying geology career track, with real long-term uncertainty. Mines’ $72,556 field earnings and strong ROI reflect the petroleum industry’s aggressive compensation for graduates with subsurface geology and geophysics training. Petroleum geology starting salaries have historically ranged from $75,000 to more than $110,000. The energy transition creates uncertainty: carbon capture, geothermal energy, and critical minerals extraction all require geoscientists, but their compensation structures are less established than traditional petroleum. Students entering programs with strong petroleum geology tracks should be advised to develop transferable quantitative skills, including seismic interpretation, subsurface modeling, and reservoir characterization, that are valuable across energy sectors.
The per-capita PhD data reveals where doctoral preparation thrives. Carleton (20.3 per capita), Whitman (11.5), Colorado College (9.6), Macalester (9.3), Smith (8.4), Dartmouth (7.2), and Bates (6.8) all prepare geology undergraduates for doctoral study at rates that rival or exceed major research universities. For students planning doctoral study in earth science, oceanography, atmospheric science, or planetary science, these per-capita rates are the most direct available measure of institutional preparation quality.
Geology is the discipline that reads the history of a planet written in rock. The programs that lead this ranking have built the field infrastructure, laboratory depth, and mentorship traditions that allow undergraduates to develop real geological intuition. Students who choose carefully, attending to field opportunity, faculty research alignment, doctoral pipeline strength, and whether they want an applied engineering culture (Mines) or an academic liberal arts culture (Dartmouth, Bowdoin, Carleton), will find a field with deep intellectual rewards and strong career prospects.
