Records analyzed
1 sub-agencies
Cross-joined with state geography and occupational mix
Headcount, average pay, length of service, sub-agencies, and hiring trends for National Mediation Board, drawn directly from the OPM FedScope federal workforce dataset (March 2025).
The verdict
National Mediation Board is a smaller federal agency: 38 employees (0.0% of the federal civilian workforce) across 1 states (including DC). At an average salary of $151,516 it pays well above the federal average of $109,869, and headcount declined 2.6% from the prior period.
Federal workforce data for National Mediation Board. This agency represents 0.0% of the total federal civilian workforce. Source: OPM FedScope, March 2025.
National Mediation Board employs 38 federal civilian workers, which accounts for 0.0% of the total federal civilian workforce of 2,289,472 reported in the OPM FedScope March 2025 release. Compared to the prior period, headcount moved down by -2.6%, a signal that hiring authorities and attrition at this agency are shedding net positions during the current reporting window.
Average length of service at National Mediation Board is 14.1 years, spread across its 1 sub-agencies, a retention signal: longer-tenured workforces tend to hold deeper institutional knowledge, while shorter tenure points to faster cycling through early-career hires. For applicants weighing federal employers, that tenure pattern is as telling as headline pay (how this agency's salary compares to the federal average is broken down in Salary Analysis below).
Geographic reach is another signal of scale: National Mediation Board has employees in 1 states (including DC), with the largest concentration in DISTRICT OF COLUMBIA (26 employees at $148,188 avg salary). Over the most recent 0 months of workforce-dynamics data, the agency recorded 0 accessions against 0 separations for a net change of +0 positions, useful context for job seekers evaluating whether National Mediation Board is expanding, contracting, or simply replacing departures. All figures draw directly from OPM FedScope Employment Cubes and update semi-annually (March and September).
Employees
38
Smaller agency
-2.6% from prior period
Average Salary
$151,516
Well above federal average
+1.3%
Avg Length of Service
14.1 yrs
Long-tenured workforce
Sub-agencies
1
Records analyzed
1 sub-agencies
Cross-joined with state geography and occupational mix
Data vintage
March 2025
OPM FedScope semi-annual snapshot
Source authority
OPM FedScope
U.S. Office of Personnel Management, official federal HR data
Agency average $151,516 relative to federal average $109,869
The federal civilian workforce concentrates in the GS-11 to GS-13 grades. These are the actual federal-wide General Schedule employee counts from OPM FedScope, per-agency grade breakdowns are not published in the public extract, so this shows the national distribution National Mediation Board hires into rather than a modelled per-agency estimate.
National General Schedule grade distribution - 1,517,243 GS employees.
How National Mediation Board pay compares to the federal average of $109,869
Agency Average
$151,516
Federal Average
$109,869
vs. Federal Avg
+37.9%
Where National Mediation Board ranks on pay
Ranked by agency (not weighted by headcount), its average salary of $151,516 is higher than 62% of the 115 federal agencies (71 pay less on average). Smaller specialized agencies often post higher per-employee averages than large ones like National Mediation Board, so this agency-count rank can differ from a comparison to the government-wide, employee-weighted average shown above. The highlighted bar marks where National Mediation Board sits in the federal pay distribution.
Average-salary distribution across all 115 federal agencies; National Mediation Board ranks higher than 62%.
Under $80K
0
$80K–$100K
0
$100K–$120K
0
$120K–$150K
0
Over $150K
38
National Mediation Board has 1 sub-agencies. The highest-paying unit averages $151,516.
| Sub-agency | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| National Mediation Board | 38 | $151,516 | 14.1 yrs |
National Mediation Board has employees in 1 states (including DC). DISTRICT OF COLUMBIA has the most with 26 employees.
| State | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| DISTRICT OF COLUMBIA | 26 | $148,188 | 13.5 yrs |
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Data Source: U.S. Office of Personnel Management (OPM) FedScope Employment Cubes, March 2025. Federal civilian non-seasonal full-time and part-time employees. Data does not include military personnel, postal workers, or intelligence agency staff. Last updated: 2026-03-10.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from OPM FedScope. Consult a qualified professional before making decisions based on this data.
Read our methodology - how this data is sourced, computed, and verified.
Data currency: Federal workforce figures from OPM FedScope as of the March 2025 snapshot, with current openings from USAJOBS; compiled and last refreshed May 2026. See our methodology for source dates and refresh cadence. Spot a figure that looks wrong? Report a correction.
PlainGovJobs is rendered directly from OPM FedScope federal-workforce data, no number is typed in by an editor. This page draws directly on OPM FedScope agency-level employment records. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.