The average salary for a geothermal technician in Illinois is around $55,780 per year.
Avg Salary
Geothermal technicians earn an average yearly salary of $55,780.
Wages typically start from $38,760 and go up to $88,000.
17% below national average Updated in 2025
Geothermal technician earnings by seniority
Top-level geothermal technician earnings begin at:
$42.31 per hour
$88,000 per year
Senior-level geothermal technician earnings begin at:
$33.63 per hour
$69,950 per year
Mid-level geothermal technician earnings begin at:
$26.82 per hour
$55,780 per year
Junior-level geothermal technician earnings begin at:
$22.37 per hour
$46,530 per year
Starting level geothermal technician earnings begin at:
$18.64 per hour
$38,760 per year
Approximate values based on highest and lowest earning segments.
Geothermal technician salary by state
| State Name | Average Salary |
|---|---|
| Alaska | $75,360 |
| Hawaii | $74,260 |
| Washington | $63,080 |
| Maine | $61,380 |
| Minnesota | $60,250 |
| Massachusetts | $59,890 |
| Rhode Island | $59,890 |
| District of Columbia | $59,320 |
| New York | $56,900 |
| Connecticut | $56,110 |
| Illinois | $55,780 |
| Utah | $53,110 |
| Oregon | $52,230 |
| North Dakota | $52,040 |
| Missouri | $52,000 |
| Idaho | $51,680 |
| Kentucky | $51,310 |
| California | $51,230 |
| Kansas | $51,060 |
| Vermont | $51,030 |
| Colorado | $50,840 |
| Louisiana | $50,660 |
| Nevada | $50,190 |
| New Mexico | $50,010 |
| Arizona | $49,990 |
| Maryland | $49,950 |
| New Jersey | $49,920 |
| Oklahoma | $49,420 |
| Wisconsin | $49,100 |
| New Hampshire | $49,030 |
| Nebraska | $48,940 |
| Iowa | $48,680 |
| Georgia | $48,490 |
| South Dakota | $48,490 |
| Montana | $48,360 |
| Delaware | $48,310 |
| Wyoming | $48,260 |
| Tennessee | $48,200 |
| Pennsylvania | $48,180 |
| Indiana | $48,120 |
| Virginia | $47,910 |
| West Virginia | $47,850 |
| Ohio | $47,550 |
| Michigan | $47,470 |
| North Carolina | $46,780 |
| Alabama | $46,610 |
| South Carolina | $46,430 |
| Florida | $46,290 |
| Arkansas | $45,830 |
| Texas | $45,360 |
| Mississippi | $44,370 |
| Virgin Islands, U.S. | $37,840 |
| Guam | $29,480 |
| Puerto Rico | $22,980 |
How do geothermal technician salaries compare to similar careers?
Geothermal technicians earn about the same as related careers in Illinois. On average, they make less than audio engineers but more than recreational vehicle service technicians.
| Career | Median Salary |
|---|---|
| Audio engineer salary | $73K |
| Environmental technician salary | $60K |
| Drafter salary | $58K |
| Farm equipment mechanic salary | $59K |
| Radio mechanic salary | $61K |
| Geothermal technician salary | $56K |
| Auto body repairer salary | $52K |
| Auto mechanic salary | $49K |
| Machine assembler salary | $50K |
| Recreational vehicle service technician salary | $48K |
Source: CareerExplorer (Aggregated)