BLS metro-level wage data places Stationary Engineers and Boiler Operators pay in Boston-Cambridge-Newton, MA-NH at a median of $83,950 per year ($40.36/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $78,620, Boston-Cambridge-Newton pays +7% above, signaling either concentrated employer demand, a cost-of-living premium, or both. Approximately 340 stationary engineers and boiler operatorss are employed across the Boston-Cambridge-Newton MSA in SOC 51-8021.

The Boston-Cambridge-Newton pay distribution spans from $67,940 at the 10th percentile to $108,820 at the 90th — a 1.6× 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 $77,660 and the 75th at $91,550, so half of Boston-Cambridge-Newton-based stationary engineers and boiler operatorss 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 Boston-Cambridge-Newton, MA-NH 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 MA data, and peer-metro comparisons — a median is a starting point, not a ceiling.