BLS metro-level wage data places First-Line Supervisors of Office and Administrative Support Workers pay in Sumter, SC at a median of $58,590 per year ($28.17/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $69,500, Sumter pays 16% below, which typically tracks with a lower local cost of living or smaller specialized-employer cluster. Approximately 320 first-line supervisors of office and administrative support workerss are employed across the Sumter MSA in SOC 43-1011.

The Sumter pay distribution spans from $39,480 at the 10th percentile to $90,160 at the 90th — a 2.3× 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 $46,560 and the 75th at $69,870, so half of Sumter-based first-line supervisors of office and administrative support workerss 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 Sumter, SC 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 SC data, and peer-metro comparisons — a median is a starting point, not a ceiling.