Dietitian and Nutritionist
Drawn directly from OPM FedScope (March 2025), this page tracks headcount, average salary, tenure, and pay comparison for the Dietitian and Nutritionist occupation series (code 630).
The verdict
Dietitian and Nutritionist is a smaller, specialized federal occupation: 3,448 employees (0.2% of the federal civilian workforce) in the Medical, Hospital, Dental, and Public Health Group family. At an average salary of $98,825 it pays below the federal average of $109,869, and headcount declined 0.7% from the prior period.
- Employees
- 3,448
- Share of workforce
- 0.2%
- Avg salary
- $98,825
- Avg tenure
- 9.1 yrs
What the Numbers Say About Dietitian and Nutritionist
As of the March 2025 reporting window, 3,448 people work in the Dietitian and Nutritionist occupation (OPM code 630) across federal agencies, 0.2% of the 2,289,472-strong federal civilian workforce. Headcount moved down by -0.7% from the prior period, a modest but trackable signal for anyone considering this specialized federal career path.
Dietitian and Nutritionist pays $98,825 per year on average, 10.1% below the $109,869 federal civilian average, after moving up 2.8% from the prior period (a broad shift as locality pay tables and grade-level adjustments moved through the workforce). Employees in this role stay an average of 9.1 years, a mid-length average tenure, reflecting a mix of career employees and those who transfer or exit mid-career.
Dietitian and Nutritionist sits inside the Medical, Hospital, Dental, and Public Health Group family (code 6), which contains 45 related occupations across the federal government. Candidates browsing USAJOBS for Dietitian and Nutritionist 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.
Dietitian and Nutritionist makes up 1.0% of the 356,984 employees across the Medical, Hospital, Dental, and Public Health Group family, ranking #20 of 45 occupations in that family by headcount. Its average salary ranks in the top half (56th percentile) of pay among Medical, Hospital, Dental, and Public Health Group occupations.
Employees
3,448
-0.7% from prior period
Average Salary
$98,825
+2.8%
Avg Length of Service
9.1 yrs
Occupation Family
Medical, Hospital, Dental, and Public Health Group
Salary Context
How Dietitian and Nutritionist pay compares to the federal average of $109,869
Occupation Average
$98,825
Federal Average
$109,869
vs. Federal Avg
-10.1%
Where Dietitian and Nutritionist ranks on federal pay
Its average salary of $98,825 is higher than 61% of federal occupation series (389 of 634). The highlighted bar marks where Dietitian and Nutritionist sits in the federal pay distribution.
Average-salary distribution across all 634 federal occupation series; Dietitian and Nutritionist ranks higher than 61%.
Related Occupations in Medical, Hospital, Dental, and Public Health Group
10 other occupations in the same family
| Occupation | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| Nurse | 109,716 | $128,375 | 9.2 yrs |
| Medical Support Assistance | 40,723 | $56,126 | 7 yrs |
| Medical Officer | 37,766 | $290,548 | 10.1 yrs |
| General Health Science | 20,339 | $131,100 | 9.9 yrs |
| Practical Nurse | 17,743 | $73,105 | 9.4 yrs |
| Pharmacist | 14,934 | $163,569 | 9.8 yrs |
| Nursing Assistant | 14,923 | $54,440 | 7.2 yrs |
| Health Aid and Technician | 13,353 | $59,584 | 9.2 yrs |
| Health System Specialist | 8,572 | $104,039 | 13.8 yrs |
| Pharmacy Technician | 7,749 | $66,635 | 8.5 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.