Chicago mayoral election, 1840|
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  The 1840 Chicago mayoral election saw Democratic nominee Alexander Loyd defeat incumbent Whig Benjamin Wright Raymond by a landslide 15.8 point margin. 
With a narrative that local elections such as Chicago's would be a bellwether of the coming 1840 United States presidential election, both parties locally viewed the election as being of great importance.[1] Chicago's mayoral result, ultimately, was no bellwether of the presidential election's party outcome. 
The election was held on March 3.[2] 
 Results
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| 1 tenure as acting officeholder.    2 Election declared null and void. |