BLS metro-level wage data places Teaching Assistants, Except Postsecondary pay in San Juan-Bayamon-Caguas, PR at a median of $23,400 per year, drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $36,780, San Juan-Bayamon-Caguas pays 36% below, which typically tracks with a lower local cost of living or smaller specialized-employer cluster. Approximately 6,710 teaching assistants, except postsecondarys are employed across the San Juan-Bayamon-Caguas MSA in SOC 25-9045.

The San Juan-Bayamon-Caguas pay distribution spans from $22,360 at the 10th percentile to $31,030 at the 90th — a 1.4× 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 $22,790 and the 75th at $24,420, so half of San Juan-Bayamon-Caguas-based teaching assistants, except postsecondarys 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.