Investigation Student Trainee
Drawn directly from OPM FedScope (March 2025), this page tracks headcount, average salary, tenure, and pay comparison for the Investigation Student Trainee occupation series (code 1899).
The verdict
In the Investigation Group family, Investigation Student Trainee counts 24 employees, a smaller, specialized federal occupation at 0.0% of the federal civilian workforce, and headcount declined 38.5% from the prior period; pay averages $45,517, which pays below the federal-wide $109,869.
- Employees
- 24
- Share of workforce
- 0.0%
- Avg salary
- $45,517
- Avg tenure
- 1.5 yrs
What the Numbers Say About Investigation Student Trainee
Federal agencies employ 24 people in the Investigation Student Trainee occupation (OPM code 1899), accounting for 0.0% of the total federal civilian workforce of 2,289,472 for the March 2025 reporting window. Headcount in this occupation moved down by -38.5% versus the prior period, though at this small a headcount, year-to-year swings can reflect a handful of hires or departures rather than a broad hiring trend.
The average salary for Investigation Student Trainee is $45,517 per year, placing it 58.6% below the overall federal civilian average of $109,869. Salaries moved up by 3.5% from the prior period, a broad shift as locality pay tables and grade-level adjustments moved through the workforce. Average length of service in this role is 1.5 years, a comparatively short average tenure, which can reflect faster turnover, a competitive private-sector alternative, or a newer program still building up its workforce.
Code 18, the Investigation Group family, is where the federal government classifies Investigation Student Trainee alongside 19 related occupations. Candidates browsing USAJOBS for Investigation Student Trainee postings should also review these sibling occupations, since federal hiring managers often cross-post positions across closely related codes when recruitment is difficult. All figures here come directly from OPM FedScope Employment Cubes, the same official source referenced in federal workforce planning, budget justifications, and GAO reports.
Within the Investigation Group family, Investigation Student Trainee ranks #20 of 20 by headcount, accounting for 0.0% of the family's combined 211,925 employees.
Employees
24
-38.5% from prior period
Average Salary
$45,517
+3.5%
Avg Length of Service
1.5 yrs
Occupation Family
Investigation Group
Salary Context
How Investigation Student Trainee pay compares to the federal average of $109,869
Occupation Average
$45,517
Federal Average
$109,869
vs. Federal Avg
-58.6%
Where Investigation Student Trainee ranks on federal pay
Its average salary of $45,517 is higher than 3% of federal occupation series (19 of 634). The highlighted bar marks where Investigation Student Trainee sits in the federal pay distribution.
Average-salary distribution across all 634 federal occupation series; Investigation Student Trainee ranks higher than 3%.
Related Occupations in Investigation Group
10 other occupations in the same family
| Occupation | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| Compliance Inspection and Support | 59,027 | $66,788 | 8.3 yrs |
| Criminal Investigation | 43,968 | $128,647 | 14 yrs |
| General Inspection, Investigation, Enforcement, and Compliance Series | 42,403 | $116,927 | 14.6 yrs |
| Customs and Border Protection | 26,205 | $110,965 | 14.2 yrs |
| Border Patrol Enforcement Series | 19,250 | $107,411 | 13.8 yrs |
| Consumer Safety Inspection | 5,359 | $72,705 | 13.9 yrs |
| Aviation Safety | 4,316 | $142,755 | 14.6 yrs |
| General Investigation | 2,766 | $115,787 | 14 yrs |
| Investigative Analysis | 2,398 | $113,302 | 14.3 yrs |
| Import Compliance Series | 1,130 | $109,580 | 15.9 yrs |
Frequently Asked Questions
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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.
Read our methodology - how this data is sourced, computed, and verified.
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 occupation-level employment records. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.