As of July 01, 2026, the average salary for a County Engineer in Illinois is $76,824 per year, which breaks down to an hourly rate of $37.
However, a County Engineer's salary can vary significantly. Here’s a look at the typical salary range:
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County Engineer Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $84,234 | $7,020 | $1,620 | $40 |
| Average | $76,824 | $6,402 | $1,477 | $37 |
| 25th Percentile | $70,389 | $5,866 | $1,354 | $34 |
West County Health Centers, Inc. - SEBASTOPOL, CA
West County Health Centers, Inc. - SEBASTOPOL, CA
Morgan County Family Dental - MOORESVILLE, IN
Careage Home Health - King County - BELLEVUE, WA
A County Engineer's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location and company size can directly affect your earning potential.
Experience is a primary driver of a County Engineer's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:
| Levels | Salary |
|---|---|
| County En... Level County Engineer | $76,279 |
| Technical... Level County Engineer | $98,358 |
| Technical... Level County Engineer | $107,974 |
| Technical... Level County Engineer | $137,011 |
| Technical... Level County Engineer | $154,983 |
What Am I Worth?
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 County Engineers. 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:
For County Engineer roles, the industry you choose can affect earning potential by as much as 47% (the gap between the highest and lowest paying industries). Data shows that the Biotechnology and Aerospace & Defense sectors offer the strongest compensation, at 25% above the average. In contrast, County Engineer positions in Hospitality & Leisure or Retail & Wholesale typically offer lower base pay, as these industries often view County Engineer as a support function rather than a direct revenue driver.
| Industry Sector | Average Annual Salary | Average Hourly Rate | Pay vs.Avg |
|---|---|---|---|
| Biotechnology | $96,030 | $46.0 | 25% |
| Aerospace & Defense | $86,043 | $41.0 | 12% |
| Energy & Utilities | $84,506 | $41.0 | 10% |
| Financial Services | $84,506 | $41.0 | 10% |
| Pharmaceuticals | $84,506 | $41.0 | 10% |
Understanding how a County Engineer'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 | $84,234 | $7,020 | $1,620 | $40 |
| Average | $76,824 | $6,402 | $1,477 | $37 |
| 25th Percentile | $70,389 | $5,866 | $1,354 | $34 |
Ready to take the next step in your career? Browse thousands of current County Engineer job openings on our job board. Use the search bar below to find your perfect match.
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