Johnson, Iowa — Presidential Election Results
Johnson, Iowa has voted Democratic in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 52.0 pts more Dem. 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 | Al Gore | Democratic | 31,174 | 59.1% | 25.2 pts (13,275 votes) | 52,769 | — | 26.7 pts more Dem. |
| 2004 | John Kerry | Democratic | 41,847 | 64.0% | 29.3 pts (19,132 votes) | 65,373 | +2.6 pts | 30.3 pts more Dem. |
| 2008 | Barack Obama | Democratic | 51,027 | 69.9% | 41.5 pts (30,295 votes) | 72,975 | +12.6 pts | 32.5 pts more Dem. |
| 2012 | Barack Obama | Democratic | 50,666 | 66.7% | 35.5 pts (26,968 votes) | 75,977 | -6.0 pts | 30.3 pts more Dem. |
| 2016 | Hillary Clinton | Democratic | 50,200 | 65.2% | 37.9 pts (29,156 votes) | 76,940 | +4.7 pts | 51.1 pts more Dem. |
| 2020 | Joseph R Biden Jr | Democratic | 59,177 | 70.6% | 42.9 pts (35,971 votes) | 83,851 | +2.7 pts | 52.3 pts more Dem. |
| 2024 | Kamala D Harris | Democratic | 58,846 | 67.9% | 37.8 pts (32,759 votes) | 86,644 | -5.1 pts | 52.0 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 | 111,455 | 47.3% of population |
| 2004 | 118,891 | 55.0% of population |
| 2008 | 127,113 | 57.4% of population |
| 2012 | 137,103 | 55.4% of population |
| 2016 | 146,928 | 52.4% of population |
| 2020 | 153,052 | 54.8% of population |
| 2024 | 160,080 | 54.1% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Johnson shifted 11.5 points toward the Democratic 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
Johnson has matched the national popular winner in 3 of the last 7 presidential elections (43%), and Iowa's own statewide winner in 3 of 7 (43%). Compare every county on the bellwether counties page.
Related Pages
Other Iowa Counties
Frequently Asked Questions
How has Johnson voted in presidential elections since 2000?
Since 2000, Johnson 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 Johnson?
Johnson's closest recorded margin was in 2000, when Al Gore (Democratic) won by 27.1 points (13,275 votes) out of 52,769 total votes cast.
Has Johnson ever flipped between parties?
Not in the 2000-2024 record on this page -- Johnson has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in Johnson?
The widest margin on record for Johnson was in 2020, when Joseph R Biden Jr (Democratic) won by 43.7 points.
How many votes were cast in Johnson relative to its population?
In 2024, 86,644 votes were recorded in Johnson against a total population of 160,080 (54.1% 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 Johnson a presidential bellwether county?
Johnson has matched the national popular winner in 3 of the last 7 presidential elections (43%), and Iowa's own statewide winner in 3 of 7 (43%).