Darker shaded wards indicate heavier spending. Click on each ward to view the total amount of campaign cash spent and the top three spenders in each contest. [Source: Illinois State Board of Elections]

The total cost to run for — and win — a seat on the Chicago City Council representing a North Side Ward was on average more expensive than a successful run for a City Council seat representing the South or West Side, according to an analysis of aldermanic campaign spending by The Daily Line.