San Mateo County
Senior Appraiser
John Opferman , working as Senior Appraiser, was employed by San Mateo County in 2025, and received regular pay of $131,046, overtime pay of $25,516, total pay of $156,562, benefits worth $29,994, total compensation of $186,556 including pay and benefits. This compensation was 21 percent higher than the average and 29 percent higher than the median in San Mateo County.
San Mateo County records show John Opferman held job of Appraiser Senior from 2023 to 2025.
In year 2025 John Opferman's total compensation was 18 percent higher than average Senior Appraiser total compensation in the state of California.
Since 2023, the total compensation has increased by $74,195, a total rise of 66.0 percent.
| Year | 2025 |
| Full Name | John Opferman |
| Job Title | Senior Appraiser |
| Get Senior Appraiser Salary Statistics | |
| State | California |
| Employer | San Mateo County |
| Total Compensation | $186,556 |
| Pay Plan |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | San Mateo County |
| Year | 2025 |
| Number of Employees | 7,625 |
| Average Annual Wage | $153,638 |
| Median Annual Wage | $144,109 |
John Opferman (2024)Appraiser Senior | View Person Details |
John Opferman (2023)Appraiser Senior | View Person Details |
Kevin Zwick (2025)Deputy Director Of Housing at San Mateo County | View Person Details |
Michelle Sudyka (2025)Behavioral Health And Recovery Services Analyst at San Mateo County | View Person Details |
Molly Ortiz E (2025)Administrative Assistant at San Mateo County | View Person Details |
Ricky Sarabia P (2025)Wastewater Collection Worker at San Mateo County | View Person Details |
Jenniffer Gascon S (2025)Social Worker at San Mateo County | View Person Details |
Nicholas Zwerdling P (2025)Mental Health Program Specialist at San Mateo County | View Person Details |
Roberto Galvez (2025)Supervising Legal Secretary - Exempt at San Mateo County | View Person Details |
Marvin Cheung (2025)Appraiser at San Mateo County | View Person Details |
Diana Gomez (2025)Supervising Mental Health Clinician - Exempt at San Mateo County | View Person Details |
Dina Alaiomid (2025)Geographic Information Systems Technician at San Mateo County | View Person Details |