Iowa, Wisconsin — Presidential Election Results

Iowa, Wisconsin has voted Democratic in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 8.7 pts more Dem. than Wisconsin 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. Wisconsin
2000 Al Gore Democratic 5,842 55.4% 15.4 pts (1,621 votes) 10,541 — 15.9 pts more Dem.
2004 John Kerry Democratic 7,122 56.8% 14.1 pts (1,774 votes) 12,542 -1.9 pts 13.8 pts more Dem.
2008 Barack Obama Democratic 7,987 66.7% 34.7 pts (4,158 votes) 11,969 +21.0 pts 21.1 pts more Dem.
2012 Barack Obama Democratic 8,105 64.7% 30.5 pts (3,818 votes) 12,534 -4.4 pts 23.9 pts more Dem.
2016 Hillary Clinton Democratic 6,669 54.4% 15.2 pts (1,860 votes) 12,260 -14.6 pts 17.0 pts more Dem.
2020 Joseph R Biden Jr Democratic 7,828 55.9% 13.7 pts (1,919 votes) 13,992 -2.2 pts 13.3 pts more Dem.
2024 Kamala D Harris Democratic 7,750 52.8% 7.6 pts (1,119 votes) 14,677 -6.2 pts 8.7 pts more Dem.

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 22,806 46.2% of population
2004 23,187 54.1% of population
2008 23,701 50.5% of population
2012 23,578 53.2% of population
2016 23,430 52.3% of population
2020 23,718 59.0% of population
2024 23,963 61.2% of population

Trend

Between 2000 and 2024, the two-party presidential margin in Iowa shifted 8.3 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.

2000: D+16.1 pts 2004: D+14.2 pts 2008: D+35.2 pts 2012: D+30.8 pts 2016: D+16.2 pts 2020: D+14.0 pts 2024: D+7.8 pts 2000 2004 2008 2012 2016 2020 2024

Bellwether Status

Iowa has matched the national popular winner in 3 of the last 7 presidential elections (43%), and Wisconsin's own statewide winner in 5 of 7 (71%). Compare every county on the bellwether counties page.

Related Pages

Other Wisconsin Counties

Frequently Asked Questions

How has Iowa voted in presidential elections since 2000?

Since 2000, Iowa has voted Democratic in 7 of 7 recorded presidential elections and Republican in 0 of 7, based on county-level returns through 2024.

What was the closest presidential election in Iowa?

Iowa's closest recorded margin was in 2024, when Kamala D Harris (Democratic) won by 7.8 points (1,119 votes) out of 14,677 total votes cast.

Has Iowa ever flipped between parties?

Not in the 2000-2024 record on this page -- Iowa has voted for the same party in every recorded presidential election in that span.

What is the largest presidential election margin recorded in Iowa?

The widest margin on record for Iowa was in 2008, when Barack Obama (Democratic) won by 35.2 points.

How many votes were cast in Iowa relative to its population?

In 2024, 14,677 votes were recorded in Iowa against a total population of 23,963 (61.2% 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 Iowa a presidential bellwether county?

Iowa has matched the national popular winner in 3 of the last 7 presidential elections (43%), and Wisconsin's own statewide winner in 5 of 7 (71%).