Johnson County
Project Engineer Treatment
John Rosson in 2025 was employed at Johnson County and had an annual salary of $122,185, according to public records. This salary was 71 percent higher than the average and 81 percent higher than the median salary in Johnson County.
Johnson County records show John Rosson held job of Project Engineer Treatment from 2021 to 2025.
According to the public records employee's salary increased by $983 from 2024 to 2025, which is a 0.8 percent rise. Since 2021, the salary has increased by $60,753, a total rise of 98.9 percent.
| Year | 2025 |
| Full Name | John Rosson |
| Job Title | Project Engineer Treatment |
| State | Kansas |
| Employer | Johnson County |
| Annual Wage | $122,185 |
| Pay Plan |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | Johnson County |
| Year | 2025 |
| Number of Employees | 4,293 |
| Average Annual Wage | $71,447 |
| Median Annual Wage | $67,615 |
John Rosson (2024)Project Engineer Treatment | View Person Details |
John Rosson (2023)Project Engineer Treatment | View Person Details |
John Rosson (2022)Project Engineer Treatment | View Person Details |
John Rosson (2021)Project Engineer Treatment | View Person Details |
Whitney Krause (2025)Section Chief at Johnson County | View Person Details |
Matthew Brown (2025)Sergeant at Johnson County | View Person Details |
Ryan Garcia (2025)Sergeant at Johnson County | View Person Details |
Bradley Smith (2025)Sergeant at Johnson County | View Person Details |
Alberto Lopez (2025)Customer Service Supervisor at Johnson County | View Person Details |
Benjamin Barker (2025)Master Deputy at Johnson County | View Person Details |
Rebecca Turner (2025)Lieutenant at Johnson County | View Person Details |
Jeremy Wunder (2025)Master Deputy at Johnson County | View Person Details |
Ryan Sims (2025)Senior Civil Engineer at Johnson County | View Person Details |
Jack Weese (2025)Master Deputy at Johnson County | View Person Details |