Salary guide, May 2025
Industrial Refrigeration (Ammonia) Technician pay in Trenton-Princeton, NJ
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The median annual wage for Heating, Air Conditioning, and Refrigeration Mechanics and Installers in Trenton-Princeton, NJ was $75,240 (U.S. Bureau of Labor Statistics, OEWS, May 2025). The middle half of workers earned between $58,740 and $93,820.
The Trenton-Princeton, NJ median is $14,230 above the national median of $61,010, both from BLS May 2025.
Broader occupation · SOC 49-9021 Heating, Air Conditioning, and Refrigeration Mechanics and Installers
The Industrial Refrigeration (Ammonia) Technician title maps to the published occupation. BLS does not separate this process, credential, shift or plant-specific title from other work in the occupation.
What should you know about trenton-Princeton, NJ?
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $47,730 | $58,740 | $75,240 | $93,820 | $111,720 |
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $22.95 | $28.24 | $36.17 | $45.11 | $53.71 |
BLS estimated 430 workers employed in this occupation in Trenton-Princeton, NJ. Location quotient: 0.68.
What should you know about united States?
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $40,050 | $48,360 | $61,010 | $77,060 | $95,210 |
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $19.25 | $23.25 | $29.33 | $37.05 | $45.78 |
What should you know about role pay against all occupations here?
The published Industrial Refrigeration (Ammonia) Technician median is $75,240. The all-occupations median in Trenton-Princeton, NJ is $63,490. Ratio: 1.19 (role median divided by all-occupations median, same units, BLS May 2025). Location quotient 0.68 measures how concentrated this occupation's employment is here against the nation. It is not a wage index.
What should you know about two BLS releases?
| Release period | 25th | Median | 75th |
|---|---|---|---|
| May 2024 | $56,790 | $72,690 | $81,770 |
| May 2025 | $58,740 | $75,240 | $93,820 |
These are two separate BLS estimates from different survey panels. The workers and employers behind them differ, so the gap is not like-for-like pay for the same workers and is not a growth rate. We show no percentage change.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025. SOC 49-9021 Heating, Air Conditioning, and Refrigeration Mechanics and Installers, Trenton-Princeton, NJ. Official occupation data · Official area tables. Released 2026-05-15.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025. SOC 49-9021 Heating, Air Conditioning, and Refrigeration Mechanics and Installers, U.S.. Official occupation data · Official area tables. Released 2026-05-15.
What should you know about nearby areas?
| Area | Median | 25th to 75th |
|---|---|---|
| Philadelphia-Camden-Wilmington, PA-NJ-DE-MD | $64,580 | $52,000 to $79,030 |
| Allentown-Bethlehem-Easton, PA-NJ | $63,130 | $54,270 to $75,850 |
All roles in Trenton-Princeton, NJ · National page · Industrial Refrigeration (Ammonia) Technician ranked across metros