City of Chicago / Chicago Public Library / First Deputy Commissioner
Job-title file
Enforce laws and maintain public safety — patrol, respond to incidents, investigate crimes, and make arrests.
1 employees hold this title in Chicago Public Library. Median total compensation for the role is $199,800, above the department median of $76,464.
Compare departments
First Deputy Commissioner is held in 8 City of Chicago departments. In Chicago Public Library, the median of $199,800 ranks #1 of 8.
Median total compensation for the First Deputy Commissioner role in other City of Chicagodepartments (highest first). Each bar links to that department’s page for this role.
Compare jurisdictions
This role is reported in 2 jurisdictions. In City of Chicago, the median of $196,740 ranks #2 of 2. See First Deputy Commissioner across all of City of Chicago →
Median total compensation for comparable First Deputy Commissionerroles in other jurisdictions. Titles are matched by normalized name across sources, not identical job classification, and pay is not cost-of-living adjusted. Each bar links to that jurisdiction’s page for the role.
Record list
Page 1
First Deputy Commissioner/Chicago Public Library
Source-specific fields
At Chicago Public Library, Mary Messner serves as a First Deputy Commissioner. They work full-time. Their 2026 pay totaled $199,800.