BLS metro-level wage data places Life Scientists, All Other pay in San Juan-Bayamon-Caguas, PR at a median of $38,430 per year ($18.48/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $93,750, San Juan-Bayamon-Caguas pays 59% below, which typically tracks with a lower local cost of living or smaller specialized-employer cluster.

The San Juan-Bayamon-Caguas pay distribution spans from $29,990 at the 10th percentile to $68,380 at the 90th — a 2.3× spread that reflects experience tenure, specialization, employer size, and the difference between public-sector, nonprofit, and private-sector compensation inside the metro. The 25th percentile sits at $32,540 and the 75th at $48,380, so half of San Juan-Bayamon-Caguas-based life scientists, all others earn within that middle band.

Metro figures capture where you actually work, not just where you live — which matters for commuters. BLS draws metro boundaries from the OMB MSA definitions, so San Juan-Bayamon-Caguas, PR covers the central city plus outlying counties tied to the metro economically. Remember that OEWS wages reflect base pay only: employer-provided health insurance, retirement matches, stock options, signing bonuses, overtime, and tips are excluded and can add 20-40% to real total compensation. Before using this metro median as a negotiation anchor, triangulate against the same occupation's national profile (linked below), its state-wide PR data, and peer-metro comparisons — a median is a starting point, not a ceiling.