Voting & Elections in St. Charles, MO
Presidential election results and party lean trends
County-level data: Election results are reported at the county level. St. Charles is located in St. Charles County, MO. Results reflect all voters in the county, not just those in St. Charles.
Election Overview
Source: St. Charles County (2024)2024 Winner
Republican
Dem Votes
92,226
40.8%
GOP Votes
130,588
57.8%
Total Votes
226,052
Margin
R+17.0%
Shift from 2020
D+0.5pp
vs prior election
📊Election Results by Year
2016–2024📈Partisan Lean Trend
R+17.0%Election History
Source: County-Level Election Results| Year | Dem Votes | GOP Votes | Total | Dem % | GOP % | Margin |
|---|---|---|---|---|---|---|
| 2024 | 92,226 | 130,588 | 226,052 | 40.8% | 57.8% | R+17.0 |
| 2020 | 89,530 | 128,389 | 222,017 | 40.3% | 57.8% | R+17.5 |
| 2016 | 68,225 | 120,899 | 199,513 | 34.2% | 60.6% | R+26.4 |
In the 2024 presidential election, St. Charles County recorded 226,052 total votes. Republicans won the county with 57.8% of the vote compared to 40.8% for Democrats, a margin of R+17.0%. Compared to 2020, the margin shifted D+0.5pp from the previous election. Since 2016, St. Charles County has shifted 9.4 percentage points toward Democrats.