Most voters don't know how much their vote actually weighs.
VoteValue exists to change that. It's a free, nonpartisan tool that quantifies the political power of any U.S. address — across every legislative district that represents it, from the U.S. House down to the state delegate level — and surfaces the data behind the number.
The problem
In most American congressional districts, the outcome of the general election is effectively decided before any ballot is cast. Gerrymandered lines, low-turnout precincts, and uncompetitive incumbents combine to mute individual votes in ways that aren't visible to the people casting them.
Existing tools either explain redistricting at a high level (advocacy sites) or let experts redraw maps (Districtr, DistrictBuilder). None of them give a regular voter a single, address-specific answer to the question that actually matters: does my vote matter here, and if not, why not?
The approach
Every U.S. address sits inside multiple overlapping districts. VoteValue assembles the data — recent election margins, district compactness, turnout patterns, representation weight — and rolls them into the VoteValue Index (VVI), a 0–100 score per district.
A high VVI doesn't mean your vote is "important" in the moralistic sense. It means the structural conditions in your district give a single ballot more leverage than the same ballot would have somewhere else. A low VVI is information too — it tells you where the system is doing the work, not the voter.
The data
Every number on the site comes from public sources: U.S. Census ACS estimates, MIT Election Data and Science Lab results, official precinct shapefiles, and the VEST 2020 precinct dataset. Methodology is documented in full on the methodology page, with the exact field IDs, formulas, and caveats.
We don't ask anyone to trust us. We show the work.
Who built it
VoteValue was built by Maneesh Vaddi, a junior at Thomas Jefferson High School for Science and Technology in Northern Virginia. The research behind the platform — including SEIR-GA, a coupled ODE model of gerrymandering's effect on voter turnout — was conducted through George Mason University's ASSIP program and published in the GMU Journal of Student-Scientist Research. It has since been presented at SIMIODE EXPO 2026 and IMSSRS 2026.
He has also spoken at the United Nations ECOSOC Chamber and the Right Here, Right Now Global Youth Climate Summit hosted by Oxford Saïd and the UN Office of the High Commissioner for Human Rights.
Where it's going
The platform is being expanded to cover every state legislative chamber in the country. The Marketplace — where users publish alternative district maps and gather petition signatures — is the long-term bet: a public square for the actual work of fixing how districts get drawn, not just complaining about it.