Frederick County
Board
Costello Mary in 2019 was employed at Frederick County and had a reported pay of $2,813 according to public records.
In year 2019 Costello Mary's salary was 48 percent lower than average Board salary in the state of Maryland.
| Year | 2019 |
| Full Name | Costello Mary |
| Job Title | Board |
| Get Board Salary Statistics | |
| State | Maryland |
| Employer | Frederick County |
| Total Pay | $2,813 |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | Frederick County |
| Year | 2019 |
| Number of Employees | 4,070 |
| Average Annual Wage | $36,737 |
| Median Annual Wage | $33,937 |
Shirley McDonald (2019)Board at Frederick County | View Person Details |
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Dean Charlene (2019)Pt Administrative at Frederick County | View Person Details |
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Harrington Larisa (2019)Part-Time Instructor at Frederick County | View Person Details |
Wolcott Evan (2019)Pt Parks And Recreation - All at Frederick County | View Person Details |
Govan Marcus (2019)Pt Intern at Frederick County | View Person Details |
Jessica Fierro (2019)Wastewater Treatment Plant Operator at Frederick County | View Person Details |
Robin Schroyer (2019)Custodian Part-Time at Frederick County | View Person Details |
Miller Emmalee (2019)Pt Parks And Recreation - All at Frederick County | View Person Details |