BLS metro-level wage data places Engine and Other Machine Assemblers pay in Kansas City, MO-KS at a median of $45,060 per year ($21.66/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $53,710, Kansas City pays 16% below, which typically tracks with a lower local cost of living or smaller specialized-employer cluster. Approximately 60 engine and other machine assemblerss are employed across the Kansas City MSA in SOC 51-2031.

The Kansas City pay distribution spans from $41,940 at the 10th percentile to $53,560 at the 90th — a 1.3× 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 $42,590 and the 75th at $53,250, so half of Kansas City-based engine and other machine assemblerss 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 Kansas City, MO-KS 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 MO data, and peer-metro comparisons — a median is a starting point, not a ceiling.