Warren, Iowa — Presidential Election Results
Warren, Iowa has voted Republican in 6 of the last 7 presidential elections on record (2000–2024). It most recently flipped to Republican in 2012. In 2024, it was 7.6 pts more Rep. than Iowa overall.
Jump to year: 2000 · 2004 · 2008 · 2012 · 2016 · 2020 · 2024
Full Election History, 2000–2024
| Year | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast | Swing | Vs. Iowa |
|---|---|---|---|---|---|---|---|---|
| 2000 | George W. Bush | Republican | 9,621 | 49.0% | 0.5 pts (100 votes) | 19,653 | — | 0.8 pts more Rep. |
| 2004 | George W. Bush | Republican | 12,160 | 52.7% | 6.2 pts (1,430 votes) | 23,053 | -5.7 pts | 5.6 pts more Rep. |
| 2008 | Barack Obama | Democratic | 12,299 | 49.4% | 0.6 pts (155 votes) | 24,880 | +6.9 pts | 9.1 pts more Rep. |
| 2012 | Mitt Romney | Republican | 13,052 | 50.1% | 1.9 pts (501 votes) | 26,072 | -2.6 pts | 7.9 pts more Rep. |
| 2016 | Donald Trump | Republican | 14,814 | 54.3% | 16.1 pts (4,403 votes) | 27,300 | -15.5 pts | 7.3 pts more Rep. |
| 2020 | Donald J Trump | Republican | 17,868 | 57.6% | 17.1 pts (5,294 votes) | 31,039 | +0.1 pts | 8.8 pts more Rep. |
| 2024 | Donald J Trump | Republican | 19,486 | 59.4% | 20.6 pts (6,774 votes) | 32,804 | -3.6 pts | 7.6 pts more Rep. |
Population Context
Total Census Bureau population estimate for the county that year, and recorded votes as a share of that total population. This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
| Year | County Population | Votes Cast (% of Population) |
|---|---|---|
| 2000 | 40,787 | 48.2% of population |
| 2004 | 42,584 | 54.1% of population |
| 2008 | 45,450 | 54.7% of population |
| 2012 | 46,895 | 55.6% of population |
| 2016 | 49,356 | 55.3% of population |
| 2020 | 52,591 | 59.0% of population |
| 2024 | 56,343 | 58.2% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Warren shifted 20.5 points toward the Republican candidate, based on recorded county returns. This reflects the vote totals in this dataset only; no claim is made here about the causes of that shift.
Margin Over Time
Democratic candidate's margin (percentage points, two-party vote share). Positive values favor the Democratic candidate; negative values favor the Republican candidate.
Bellwether Status
Warren has matched the national popular winner in 5 of the last 7 presidential elections (71%), and Iowa's own statewide winner in 5 of 7 (71%). Compare every county on the bellwether counties page.
Related Pages
Other Iowa Counties
Frequently Asked Questions
How has Warren voted in presidential elections since 2000?
Since 2000, Warren has voted Democratic in 1 of 7 recorded presidential elections and Republican in 6 of 7, based on county-level returns through 2024.
What was the closest presidential election in Warren?
Warren's closest recorded margin was in 2000, when George W. Bush (Republican) won by 0.5 points (100 votes) out of 19,653 total votes cast.
Has Warren ever flipped between parties?
Yes. Warren changed which party won the county in: 2008, 2012, based on the 2000-2024 record on this page.
What is the largest presidential election margin recorded in Warren?
The widest margin on record for Warren was in 2024, when Donald J Trump (Republican) won by 21.0 points.
How many votes were cast in Warren relative to its population?
In 2024, 32,804 votes were recorded in Warren against a total population of 56,343 (58.2% of the total population). This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
Is Warren a presidential bellwether county?
Warren has matched the national popular winner in 5 of the last 7 presidential elections (71%), and Iowa's own statewide winner in 5 of 7 (71%).