Salary guide, May 2025
Industrial Refrigeration (Ammonia) Technician pay in Chicago-Naperville-Elgin, IL-IN
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The median annual wage for Heating, Air Conditioning, and Refrigeration Mechanics and Installers in Chicago-Naperville-Elgin, IL-IN was $77,960 (U.S. Bureau of Labor Statistics, OEWS, May 2025). The middle half of workers earned between $61,050 and $96,790.
The Chicago-Naperville-Elgin, IL-IN median is $16,950 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 chicago-Naperville-Elgin, IL-IN?
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $47,460 | $61,050 | $77,960 | $96,790 | $117,940 |
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $22.82 | $29.35 | $37.48 | $46.53 | $56.70 |
BLS estimated 7,210 workers employed in this occupation in Chicago-Naperville-Elgin, IL-IN. Location quotient: 0.61.
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 $77,960. The all-occupations median in Chicago-Naperville-Elgin, IL-IN is $54,720. Ratio: 1.42 (role median divided by all-occupations median, same units, BLS May 2025). Location quotient 0.61 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 | $53,230 | $74,400 | $90,290 |
| May 2025 | $61,050 | $77,960 | $96,790 |
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, Chicago-Naperville-Elgin, IL-IN. 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 |
|---|---|---|
| Kankakee, IL | $62,570 | $60,290 to $81,930 |
| Niles, MI | $58,130 | $46,330 to $63,270 |
National page · Industrial Refrigeration (Ammonia) Technician ranked across metros