These are: Edward Johnson (twice), John Montgomery, Ferdinand C. Latrobe (elected four times), Howard W. Jackson, William F. Broening, and Theodore R. McKeldin.

[2] Baltimore has experienced major turnover in the mayor's office in recent years, in large part due to corruption scandals.

In September 2015, incumbent mayor Stephanie Rawlings-Blake announced she would not seek re-election, setting up a hotly-contested primary election in the heavily Democratic city in 2016.

[3] Maryland State Senator Catherine Pugh defeated former mayor Shelia Dixon, who resigned from office in 2010 after pleading guilty to misappropriating holiday gift cards intended to serve poor Baltimore residents.

Pugh easily defeated Republican Alan Walden and Green Party candidate Joshua Harris to become the 50th Mayor of Baltimore, and was sworn in on December 6, 2016.

In the 2020 Democratic primary, Young went up against Dixon, his successor as City Council President Brandon Scott, former T. Rowe Price executive and Obama administration Treasury Department official Mary Miller, former federal prosecutor and deputy Attorney General of Maryland Thiruvendran Vignarajah.