Mapping Early American Elections

15th Congress: Illinois 1818

This page includes an interactive map. A text version of the same election data is available in the table below the map.

Illinois elected one Democratic-Republican to the Fifteenth Congress.

Illinois used a statewide at-large system for electing members to Congress.

Congressional election results, 15th Congress: Illinois 1818
District Candidate Party Vote Percentage Elected
At-large John MacLean Democratic-Republican 1,996 50.2% ✓ Elected
At-large Daniel P. Cook Democratic-Republican 1,982 49.8% Not elected

In most cases, only candidates who received more than 5 percent of the vote in a district are reported. Other candidates are reported as a group, but only if they in aggregate received more than 5 percent of the vote. In addition, percentages for each district may not add up to 100 percent due to rounding. The term Dissenting Republican includes various breakaway factions of the Democratic-Republican party.

New Nation Votes Data

Legend

Map legend: colors indicate party affiliation — Federalist, Democratic-Republican, or Other/unknown; darker shading indicates a larger vote margin (up to 40%, 60%, 80%, or 100%); marker shapes distinguish counties, congressional districts, major cities or towns, and areas with no data available.

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Citation

“15th Congress: Illinois 1818,” Mapping Early American Elections, https://earlyamericanelections.org/maps/meae.congressional.congress15.il.county.html