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Fact check: What percentage of voters in Idaho are republican

Checked on August 16, 2025

1. Summary of the results

The analyses reveal conflicting data regarding the percentage of Republican voters in Idaho. The most commonly cited figure is approximately 59% of registered voters are Republican [1]. However, one source reports a significantly lower figure of 45.19% of registered voters are Republican [2]. A third source provides additional context, stating that 58% of Idaho voters are registered as Republicans [3], which aligns closely with the 59% figure.

The discrepancy between these sources suggests that the exact percentage may vary depending on:

  • The specific time period when data was collected
  • Different methodologies for calculating voter registration percentages
  • Whether the data includes all registered voters or specific subsets

2. Missing context/alternative viewpoints

The original question lacks important contextual information that would help clarify the answer:

  • Temporal context: Voter registration percentages change over time, and none of the sources provide clear publication dates, making it difficult to determine which data is most current
  • Migration patterns: One analysis reveals that 65% of out-of-state voters who moved to Idaho are registered Republicans [3], indicating that Idaho's Republican voter percentage may be increasing due to interstate migration
  • Age demographics: The analyses mention voter registration trends among different age groups [1], but don't break down party affiliation by age, which could provide insight into future voting trends
  • Data source reliability: The analyses reference both official government sources [4] [5] and independent organizations [2], but don't clarify which sources might be more authoritative

3. Potential misinformation/bias in the original statement

The original question itself is neutral and factual in nature, seeking specific statistical information rather than making claims. However, there are potential issues with how this information might be interpreted:

  • Oversimplification: The question assumes a single, definitive answer exists when the data shows significant variation between sources (ranging from 45.19% to 59%)
  • Lack of specificity: The question doesn't specify whether it's asking about registered voters, likely voters, or actual voting patterns, which could lead to different answers
  • Missing temporal context: Without specifying a time frame, the question could be answered with outdated information that doesn't reflect current political realities

The 14-point spread between the lowest (45.19%) and highest (59%) reported percentages represents a substantial difference that could significantly impact political analysis and campaign strategies.

Want to dive deeper?
What is the current voter registration breakdown in Idaho by party?
How has the republican vote share changed in Idaho elections since 2010?
Which counties in Idaho have the highest percentage of republican voters?
How does Idaho's voter registration process impact republican voter turnout?
What role do independent voters play in Idaho elections?