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As of August 01, 2026, the average salary for a Hydrogeologist II in Illinois is $95,200 per year, which breaks down to an hourly rate of $46.
However, a Hydrogeologist II's salary can vary significantly. Here’s a look at the typical salary range:
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Hydrogeologist II Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $107,200 | $8,933 | $2,062 | $52 |
| Average | $95,200 | $7,933 | $1,831 | $46 |
| 25th Percentile | $82,600 | $6,883 | $1,588 | $40 |
A Hydrogeologist II's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how geographic location, and company size can directly affect your earning potential.
Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Hydrogeologist IIs. For example, consider the average annual salaries in these key locations:
Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:
Hydrogeologist II salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $103,417. While startup companies pay approximate $87,750.
| Company Size | Employees | Average Salary |
|---|---|---|
| Startup | 1~50 | $87,750 |
| Growth Stage | 51~500 | $92,740 |
| Established | 501~5000 | $99,944 |
| Enterprise | 5000+ | $103,417 |
Understanding how a Hydrogeologist II's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.
| Annual Salary | Monthly Pay | Weekly Pay | Hourly Wage | |
|---|---|---|---|---|
| 75th Percentile | $107,200 | $8,933 | $2,062 | $52 |
| Average | $95,200 | $7,933 | $1,831 | $46 |
| 25th Percentile | $82,600 | $6,883 | $1,588 | $40 |
Promotions are the fastest way to increase your earnings. As a Hydrogeologist II, you have the following paths for advancement. The table below compares the salary raises for common next-step roles. By comparing these figures, you can choose the career path that best meets your financial goals.
| Next Step Role | Estimate Salary | Projected Raise |
|---|---|---|
| Senior Biologist | $85,100 | -11% |
| Mine Geologist III | $87,300 | -8% |
| Senior Geophysicist | $144,200 | 51% |
| Hydrogeologist III | $115,200 | 21% |
Ready to take the next step in your career? Browse thousands of current Hydrogeologist II job openings on our job board. Use the search bar below to find your perfect match.
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