United States Postal Service
Supv Customer Services
Mark Slack J in 2025 was employed at United States Postal Service and had an annual salary of $87,868, according to public records. This salary was 37 percent higher than the average and 41 percent higher than the median salary in United States Postal Service.
United States Postal Service records show Mark Slack J held three jobs from 2015 to 2025.
| Year | 2025 |
| Full Name | Mark Slack J |
| Job Title | Supv Customer Services |
| State | Federal |
| Employer | United States Postal Service |
| Location | MO - GOWER |
| Annual Wage | $87,868 |
| Pay Plan | |
| Grade | 17 |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | United States Postal Service |
| Year | 2025 |
| Number of Employees | 637,982 |
| Average Annual Wage | $64,181 |
| Median Annual Wage | $62,505 |
Mark Slack J (2024)Supv Cust Svcs | View Person Details |
Mark Slack J (2023)Supv Cust Svcs | View Person Details |
Mark Slack J (2022)Rural Carrier | View Person Details |
Mark Slack J (2021)Rural Carrier | View Person Details |
Mark Slack J (2020)Rural Carrier | View Person Details |
Mark Slack J (2019)Rural Carrier | View Person Details |
Mark Slack J (2018)Rural Carrier | View Person Details |
Mark Slack J (2017)Rural Carrier | View Person Details |
Mark Slack J (2016)Rural Carrier | View Person Details |
Strickland Robert E (2025)Supv Customer Services at United States Postal Service | View Person Details |
Rodriguez Lorenzo D (2025)Supv Customer Services at United States Postal Service | View Person Details |
Thornton Faustina L (2025)Supv Customer Services at United States Postal Service | View Person Details |
Washington Darryl (2025)Supv Customer Services at United States Postal Service | View Person Details |
Augustina Ralph-Laryea O (2025)Supv Customer Services at United States Postal Service | View Person Details |
Michael Grabowski J (2025)Supv Customer Services at United States Postal Service | View Person Details |
Cheng Ting (2025)Occ Health Processing Spec Sr at United States Postal Service | View Person Details |
Sarah Wyss J (2025)Supv Business Mail Entry at United States Postal Service | View Person Details |
London Bonds (2025)Supv Distribution Operations at United States Postal Service | View Person Details |
Porter Brian (2025)Supv Logistics Operations at United States Postal Service | View Person Details |