Median Earnings (1yr)
$55,807
95th percentile
60th percentile in California
Median Debt
$22,138
1% above national median

Analysis

Cal Poly SLO's microbiology program produces earnings that crush the national average—$55,807 versus $38,040 nationally—placing graduates in the 95th percentile nationwide. But here's the interesting wrinkle: within California's more competitive landscape, this performance lands at the 60th percentile, essentially matching San Francisco State and trailing only UC Berkeley by a few thousand dollars. For a program at a selective public university (30% admission rate), that's solid positioning against some of the state's flagship institutions.

The debt picture looks reasonable at first glance—$22,138 is close to the national median—but California programs typically carry less debt (state median: $14,904), meaning Cal Poly graduates emerge with about $7,000 more than their in-state peers. Still, the 0.40 debt-to-earnings ratio means graduates can expect to earn more than double their debt in their first year, giving them financial breathing room early in their careers.

One major caveat: this data comes from fewer than 30 graduates, so these numbers could shift significantly year to year. That said, the strong first-year earnings suggest the program's rigorous, hands-on approach is translating to real market value. For families comparing California options, this program delivers competitive outcomes at what's likely a more affordable price point than UC Berkeley, though you'll want to confirm that final costs after aid align with your budget.

Where California Polytechnic State University-San Luis Obispo Stands

Earnings vs. debt across all microbiological sciences and immunology bachelors's programs nationally

Earnings Distribution

How California Polytechnic State University-San Luis Obispo graduates compare to all programs nationally

Compare to Similar Programs in California

Microbiological Sciences and Immunology bachelors's programs at peer institutions in California (17 total in state)

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SchoolIn-State TuitionEarnings (1yr)Earnings (4yr)Median DebtDebt/Earnings
California Polytechnic State University-San Luis ObispoSan Luis Obispo$11,075$55,807$22,1380.40
San Francisco State UniversitySan Francisco$7,424$56,071$73,604$24,1200.43
University of California-BerkeleyBerkeley$14,850$50,706$14,3080.28
California State University-ChicoChico$8,064$49,068$50,964$24,5720.50
California State University-Long BeachLong Beach$7,008$48,631
California State University-NorthridgeNorthridge$7,095$46,489$7,5000.16
National Median$38,040$21,8680.57

Career Paths

Occupations commonly associated with microbiological sciences and immunology graduates

Natural Sciences Managers

Plan, direct, or coordinate activities in such fields as life sciences, physical sciences, mathematics, statistics, and research and development in these fields.

$161,180/yrJobs growth:Bachelor's degree

Clinical Research Coordinators

Plan, direct, or coordinate clinical research projects. Direct the activities of workers engaged in clinical research projects to ensure compliance with protocols and overall clinical objectives. May evaluate and analyze clinical data.

$161,180/yrJobs growth:Bachelor's degree

Water Resource Specialists

Design or implement programs and strategies related to water resource issues such as supply, quality, and regulatory compliance issues.

$161,180/yrJobs growth:Bachelor's degree

Medical and Health Services Managers

Plan, direct, or coordinate medical and health services in hospitals, clinics, managed care organizations, public health agencies, or similar organizations.

$117,960/yrJobs growth:Bachelor's degree

Medical Scientists, Except Epidemiologists

Conduct research dealing with the understanding of human diseases and the improvement of human health. Engage in clinical investigation, research and development, or other related activities.

$100,590/yrJobs growth:Doctoral or professional degree

Microbiologists

Investigate the growth, structure, development, and other characteristics of microscopic organisms, such as bacteria, algae, or fungi. Includes medical microbiologists who study the relationship between organisms and disease or the effects of antibiotics on microorganisms.

$87,330/yrJobs growth:Bachelor's degree

Epidemiologists

Investigate and describe the determinants and distribution of disease, disability, or health outcomes. May develop the means for prevention and control.

$83,980/yrJobs growth:Master's degree

Biological Science Teachers, Postsecondary

Teach courses in biological sciences. Includes both teachers primarily engaged in teaching and those who do a combination of teaching and research.

$83,980/yrJobs growth:

Health Specialties Teachers, Postsecondary

Teach courses in health specialties, in fields such as dentistry, laboratory technology, medicine, pharmacy, public health, therapy, and veterinary medicine.

$83,980/yrJobs growth:

Biological Technicians

Assist biological and medical scientists. Set up, operate, and maintain laboratory instruments and equipment, monitor experiments, collect data and samples, make observations, and calculate and record results. May analyze organic substances, such as blood, food, and drugs.

$52,000/yrJobs growth:Bachelor's degree

Food Science Technicians

Work with food scientists or technologists to perform standardized qualitative and quantitative tests to determine physical or chemical properties of food or beverage products. Includes technicians who assist in research and development of production technology, quality control, packaging, processing, and use of foods.

$48,480/yrJobs growth:Associate's degree

Biological Scientists, All Other

All biological scientists not listed separately.

About This Data

Source: U.S. Department of Education College Scorecard (October 2025 release)

Population: Graduates who received federal financial aid (Title IV grants or loans). At California Polytechnic State University-San Luis Obispo, approximately 18% of students receive Pell grants. Students who did not receive federal aid are not included in these figures.

Earnings: Median earnings from IRS W-2 data for graduates who are employed and not enrolled in further education, measured 1 year after completion. Earnings are pre-tax and include wages, salaries, and self-employment income.

Debt: Median cumulative federal loan debt at graduation. Does not include private loans or Parent PLUS loans borrowed on behalf of students.

Sample Size: Based on 21 graduates with reported earnings and 26 graduates with debt data. Small samples may not be representative.