Collect the source
Identify the official state or local source, request process, legal restrictions, fees, and update schedule.
Open data infrastructure for democracy
A Rep My Block projectBuild the National Voter File.
We are documenting how voter files are obtained, transformed, and used in every state — so campaigns, organizers, researchers, and civic groups do not have to start from scratch.
Non-partisan · Open source · Built state by state
Collect
Locate voter-file sources and access rules.
Standardize
Transform inconsistent state formats.
Document
Record sources, process, and provenance.
Build
Create reusable civic data infrastructure.
All 50 states
Find your state. Move the project forward.
The live pipeline tracks volunteer activity. Use the directory below to find a state quickly, then open the pipeline or contribute what you know.
No states match your search.
How it works
Fifty systems. One common structure.
Transform the data
Convert state-specific files into consistent fields and formats that can be used across jurisdictions.
Load and document
Store standardized data with enough provenance and documentation for someone else to reproduce the process.
Make it useful
Build accessible tools and interfaces that help civic groups work with voter data responsibly and efficiently.
Why this matters
Election data should not require rediscovering the process fifty times.
Every state handles voter files differently. Formats, fees, access rules, delivery methods, and update schedules vary widely.
The National Voter File project creates a shared technical and research foundation so the next campaign, researcher, or civic group can build on verified work instead of repeating it.
You can help without writing code
One verified answer can move a state forward.
Tell us about your local board of elections, voter-file experience, or the official sources you have already found.
Take the volunteer survey✓
Find the official voter-file request page.
✓
Confirm a fee, statute, form, or eligibility rule.
✓
Identify state or county election contacts.
✓
Test or improve an open-source data transformer.
Open source
Inspect it. Improve it. Fork it.
The project source is public on GitHub. Developers can review the data model, transformation work, issues, and history.