State-by-state voter data access.
Comprehensive notes for obtaining voter registration lists and voter history data across all 50 U.S. states — compiled firsthand while building propensity models for local campaigns.
The costs quoted below are for statewide lists. Local jurisdictions are typically much less expensive. If you have questions about your local jurisdiction, contact your local election office or Secretary of State's office — these interactions have always been pleasant and helpful.
Once you have your file, the DIY voter propensity scoring guide walks through turning it into a turnout model.
- Tested or Pending — personally attested.
- Accessible — transparent process, not yet personally completed.
- Leg Work — open-records request or office contact required.
- Barriers — legislative restrictions on who may access.
- Relatively Expensive — expensive compared to peer states.
- $ — $1–199 USD
- $$ — $200–999 USD
- $$$ — $1000+ USD
- ? — Unverified
| State | Category | Access method | Cost | Status |
|---|---|---|---|---|
| Alabama | Relatively Expensive | Online | $$$ | Untested |
| Alaska | Leg Work | Contact Offices | $ | Untested |
| Arizona | Leg Work | Open Records | $$ | Untested |
| Arkansas | Accessible | Mail in | $ | Untested |
| California | Barriers | Mail in | $ | Untested |
| Colorado | Accessible | Mail in | $ | Untested |
| Connecticut | Accessible | Email/Mail in | $$ | Untested |
| Delaware | Accessible | Mail in | $ | Untested |
| Florida | Accessible | FREE | Tested | |
| Georgia | Accessible | Online | $$ | Tested |
| Hawaii | Leg Work | Contact Offices | ? | Untested |
| Idaho | Accessible | Online | $ | Untested |
| Illinois | Barriers | Mail in | $$ | Untested |
| Indiana | Barriers | Mail in | $$$ | Untested |
| Iowa | Accessible | Mail in | $$$ | Untested |
| Kansas | Accessible | Mail in | $$ | Untested |
| Kentucky | Accessible | Email/Mail in | $$$ | Untested |
| Louisiana | Accessible | Online | $$$ | Untested |
| Maine | Barriers | Mail in | $$$ | Untested |
| Maryland | Accessible | Online | $ | Untested |
| Massachusetts | Leg Work | Contact Offices | ? | Untested |
| Michigan | Accessible | Online/Open Records | $ | Tested |
| Minnesota | Barriers | Mail in | $ | Untested |
| Mississippi | Accessible | Online | FREE | Tested |
| Missouri | Leg Work | Open Records | $ | Untested |
| Montana | Accessible | Online | $$$ | Untested |
| Nebraska | Accessible | Mail in | $$ | Untested |
| Nevada | Relatively Expensive | Online/Mail in | $$$ | Untested |
| New Hampshire | Leg Work | Contact Offices | $ | Untested |
| New Jersey | Leg Work | Open Records | $$ | Untested |
| New Mexico | Relatively Expensive | $$$ | Untested | |
| New York | Leg Work | FOIL | $ | Untested |
| North Carolina | Accessible | Online | FREE | Tested |
| North Dakota | Leg Work | Contact Offices | ? | Untested |
| Ohio | Accessible | Online | FREE | Tested |
| Oklahoma | Barriers | FREE | Untested | |
| Oregon | Accessible | Online | $$ | Untested |
| Pennsylvania | Accessible | Online | $ | Tested |
| Rhode Island | Accessible | Email/Mail in | $ | Untested |
| South Carolina | Barriers | Online | $$$ | Untested |
| South Dakota | Accessible | Email/Mail in | $$ | Untested |
| Tennessee | Accessible | Mail in | $$$ | Untested |
| Texas | Leg Work | Mail in | $$$ | Untested |
| Utah | Accessible | Online | $$$ | Untested |
| Vermont | Accessible | FREE | Untested | |
| Virginia | Barriers | $ | Untested | |
| Washington | Accessible | Online | FREE | Tested |
| West Virginia | Accessible | Email/Mail in | $$$ | Untested |
| Wisconsin | Relatively Expensive | Online | $$$ | Untested |
| Wyoming | Barriers | Email/Mail in | $ | Untested |
Research background
This research was compiled by exploring how all 50 states make their voter registration lists and voter history available. The goal is to provide helpful information for anyone looking to access this public data.
Important note: If you identify any gaps or errors in this research, please reach out so the information can be updated.
Research sources
- National Conference of State Legislatures — Access to and Use of Voter Registration Lists
- Ballotpedia — Availability of state voter files
- Direct contact with state election offices
- State Secretary of State websites
Have the file? We'll do the math.
Campaign Compass turns your district's public voter file into a free sample report — your win number, your voters, and an honest read on whether to run.