Not All Votes Are Created Equal: Understanding the Voter Impact Index
In the grand theater of American democracy, not every vote carries the same weight. Some votes, especially those cast in key battleground states, can feel like they are worth their weight in gold, while others seem to vanish into the vast void of electoral indifference.
Every four years, we witness a frenzy of political campaigning, particularly in a select few swing states that attract a deluge of advertisements and candidate appearances. Meanwhile, voters in the majority of states often find themselves sidelined in this political spectacle. Even within these pivotal states, however, not all electoral contests—be it for the House of Representatives, the governorship, or state legislative seats—are created equal in their competitiveness.
To shed light on this uneven playing field, the nonpartisan nonprofit Power Moves has introduced a groundbreaking tool: the Voter Impact Index, details of which were exclusively shared with POLITICO. This initiative aims to empower voters by illustrating the true impact of their votes based on geographic context.
“We were all taught in school that every vote counts, but deep down, many of us suspect that’s not entirely true,” explained Heather Weston, one of the organization’s co-founders. “We want to clarify how geography significantly influences the efficacy of your vote.”
The Voter Impact Index analyzes over 41,000 zip codes across the United States to quantify the potential influence of a vote, a feature the organization’s founders consider a unique offering.
Scoring ranges from 0 to 100, with the “Voter Impact” score derived from a complex methodology. In essence, the score reflects the competitiveness of recent elections within a voter’s zip code for six public offices, spanning from the presidency to state legislative races. A higher score signifies a more competitive electoral landscape in which a voter can participate.
Notably, the index assigns varying weights to different offices: presidential, Senate, and House elections each account for 25% of the score, while gubernatorial races contribute 15%, and state legislative seats carry a modest 5% each.
No zip code received a score of zero or a perfect 100. Remarkably, voters residing in Eau Claire, Wisconsin, zip code 54703, topped the chart with a score of 85. In contrast, most of Wyoming languished at the bottom with a score of 14—a situation that perhaps underscores the state’s sparse population and lack of electoral competition. Ironically, Wisconsin boasts the highest statewide average, while Wyoming trails behind.
As more than 40 million Americans relocate annually—many of whom are college students moving to new states—this tool is designed to guide individuals in maximizing their voting power based on geographic considerations.
Power Moves emphasizes that while this tool is valuable, it should not be the sole determinant in choosing a new home. With home-buying platforms like Zillow already incorporating factors such as walkability and educational quality into their algorithms, the organization hopes voting influence will become a critical aspect of home selection as well. Given the often arbitrary nature of district lines, properties just blocks apart can yield drastically different voting scores.
“Our goal isn’t to dictate anyone’s political preferences,” stated co-founder Charles Simon. “We simply want to help everyone understand their vote impact score, enabling them to make informed decisions.”
This article first appeared in POLITICO Pro’s Morning Score. Interested in receiving the newsletter every weekday? Subscribe to POLITICO Pro for daily policy news and essential updates on the most significant stories.

