BLS metro-level wage data places Biological Science Teachers, Postsecondary pay in Portland-South Portland, ME at a median of $78,210 per year, drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $84,620, Portland-South Portland pays 8% below, which typically tracks with a lower local cost of living or smaller specialized-employer cluster. Approximately 100 biological science teachers, postsecondarys are employed across the Portland-South Portland MSA in SOC 25-1042.

The Portland-South Portland pay distribution spans from $61,450 at the 10th percentile to $163,240 at the 90th — a 2.7× 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 $65,710 and the 75th at $135,450, so half of Portland-South Portland-based biological science teachers, 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 Portland-South Portland, ME 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 ME data, and peer-metro comparisons — a median is a starting point, not a ceiling.