Median Earnings (1yr)
$55,807
95th percentile (60th in CA)
Median Debt
$22,138
1% above national median
Debt-to-Earnings
0.40
Manageable
Sample Size
21
Limited data

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

California Polytechnic State University-San Luis ObispoOther microbiological sciences and immunology programs

Programs in the upper-left quadrant (high earnings, low debt) offer the best value. Programs in the lower-right quadrant warrant careful consideration.

Earnings Distribution

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

California Polytechnic State University-San Luis Obispo graduates earn $56k, placing them in the 95th percentile of all microbiological sciences and immunology bachelors programs nationally.

Compare to Similar Programs in California

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

SchoolEarnings (1yr)Earnings (4yr)Median DebtDebt/Earnings
California Polytechnic State University-San Luis Obispo$55,807—$22,1380.40
San Francisco State University$56,071$73,604$24,1200.43
University of California-Berkeley$50,706—$14,3080.28
California State University-Chico$49,068$50,964$24,5720.50
California State University-Long Beach$48,631———
California State University-Northridge$46,489—$7,5000.16
National Median$38,040—$21,8680.57

Other Microbiological Sciences and Immunology Programs in California

Compare tuition, earnings, and debt across California schools

SchoolIn-State TuitionEarnings (1yr)Debt
San Francisco State University
San Francisco
$7,424$56,071$24,120
University of California-Berkeley
Berkeley
$14,850$50,706$14,308
California State University-Chico
Chico
$8,064$49,068$24,572
California State University-Long Beach
Long Beach
$7,008$48,631—
California State University-Northridge
Northridge
$7,095$46,489$7,500

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.