Toxicology
Everything OPM FedScope (June 2026) reports about the Toxicology occupation series (code 0415): headcount, average salary, length of service, and pay comparison.
The verdict
In the Biological Sciences Group family, Toxicology counts 372 employees, a smaller, specialized federal occupation at 0.0% of the federal civilian workforce, and headcount declined 1.3% from the prior period; pay averages $152,022, which pays well above the federal-wide $117,339.
- Employees
- 372
- Share of workforce
- 0.0%
- Avg salary
- $152,022
- Avg tenure
- 12.3 yrs
What the Numbers Say About Toxicology
Federal agencies employ 372 people in the Toxicology occupation (OPM code 0415), accounting for 0.0% of the total federal civilian workforce of 1,953,300 for the June 2026 reporting window. Headcount in this occupation moved down by -1.3% 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.
Toxicology pays $152,022 per year on average, moving up 0.1% from the prior period (a small shift, within the range of normal year-to-year rounding rather than a broad pay-table change). Employees in this role stay an average of 12.3 years, a mid-length average tenure, reflecting a mix of career employees and those who transfer or exit mid-career.
Code 04, the Biological Sciences Group family, is where the federal government classifies Toxicology alongside 30 related occupations. Candidates browsing USAJOBS for Toxicology postings should also review these sibling occupations in the Biological Sciences Group family.
Within the Biological Sciences Group family, Toxicology ranks #19 of 31 by headcount, accounting for 0.5% of the family's combined 67,961 employees.
Salary context · rich-pay series
How Toxicology pay compares to the federal average of $117,339
Occupation Average
$152,022
Federal Average
$117,339
vs. Federal Avg
+29.6%
Where Toxicology ranks on rich federal pay
Its average salary of $152,022 is higher than 89% of federal occupation series (482 of 541). The highlighted bar marks where Toxicology sits in the federal pay distribution.
Average-salary distribution across all 541 federal occupation series; Toxicology ranks higher than 89%.
Related Occupations in Biological Sciences Group
10 other occupations in the same family
| Occupation | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| General Natural Resources Management and Biological Sciences | 23,662 | $124,641 | 14 yrs |
| Forestry Technician | 11,090 | $61,659 | 8.7 yrs |
| Wildland Fire Management | 9,667 | $64,457 | 7 yrs |
| Biological Science Technician | 5,212 | $56,618 | 8.9 yrs |
| Soil Conservation | 4,101 | $89,391 | 13.8 yrs |
| Wildlife Biology | 1,868 | $95,468 | 16.3 yrs |
| Fish Biology | 1,629 | $116,550 | 16.2 yrs |
| Microbiology | 1,629 | $143,306 | 16.3 yrs |
| Forestry | 1,626 | $88,902 | 15.1 yrs |
| Ecology | 989 | $122,664 | 16.1 yrs |
Nationwide occupation series with similar scale or pay
Two peer sets for Toxicology outside the Biological Sciences Group family, on headcount and average salary axes that vary across all OPM occupation series.
Similar headcount
Nearest employee counts in other occupation families (372 here).
Similar rich average salary
Nearest average salaries in other occupation families ($152,022 here).
Key takeaways
- Toxicology pays well above the federal average by 29.6% ($152,022 vs $117,339 federal-wide), at the 89th percentile for pay among 541 tracked occupation series.
- A smaller, specialized federal occupation by headcount: 372 employees, 0.0% of the federal civilian workforce, and headcount declined 1.3% from the prior period.
- According to OPM FedScope June 2026, Toxicology ranks #333 of 663 federal occupation series by headcount (the same employee_count ordering as our occupations directory).
- Within the Biological Sciences Group family, Toxicology ranks #19 of 31 by headcount, accounting for 0.5% of the family's combined 67,961 employees.
OPM FedScope and Federal Workforce Data figures are federal civilian headcounts, average salaries, and length-of-service statistics - not job-quality scores, hiring advice, or a live vacancy listing. A larger or higher-paid agency is not a better employer.