Stationary Engineers and Boiler Operators in Louisville/Jefferson County

BLS metro-level wage data places Stationary Engineers and Boiler Operators pay in Louisville/Jefferson County, KY-IN at a median of $78,800 per year ($37.88/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $78,620, Louisville/Jefferson County pays same as, signaling either concentrated employer demand, a cost-of-living premium, or both. Approximately 30 stationary engineers and boiler operatorss are employed across the Louisville/Jefferson County MSA in SOC 51-8021.

The Louisville/Jefferson County pay distribution spans from $60,520 at the 10th percentile to $88,900 at the 90th, a 1.5× 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 $66,770 and the 75th at $86,310, so half of Louisville/Jefferson County-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 Louisville/Jefferson County, KY-IN 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 KY data, and peer-metro comparisons, a median is a starting point, not a ceiling.