BLS metro-level wage data places Chemical Technicians pay in Santa Rosa-Petaluma, CA at a median of $57,380 per year ($27.59/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $60,390, Santa Rosa-Petaluma pays 5% below, which typically tracks with a lower local cost of living or smaller specialized-employer cluster. Approximately 90 chemical technicianss are employed across the Santa Rosa-Petaluma MSA in SOC 19-4031.

The Santa Rosa-Petaluma pay distribution spans from $40,880 at the 10th percentile to $81,620 at the 90th — a 2.0× 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 $48,280 and the 75th at $64,990, so half of Santa Rosa-Petaluma-based chemical technicianss 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 Santa Rosa-Petaluma, CA 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 CA data, and peer-metro comparisons — a median is a starting point, not a ceiling.