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Voter rolls are the official lists of registered voters maintained by government election officials — usually a state or county election office. Each record shows a voter's name, registered address, registration status, party where applicable, and vote history. They are the same data campaigns work with as the "voter file."
The plain-English meaning, and how the rolls relate to the voter file campaigns work with.
Voter rolls are the official lists of people registered to vote in a given jurisdiction, kept and used by government election officials to run elections. Every registered voter has one record, and that record is updated whenever the voter registers, moves, changes party, or is removed. You will also see the longer phrase voter registration rolls — it means exactly the same thing.
The rolls are the government's source of truth. The voter file is what that same registration data is called once it is exported into a database for analysis and outreach. A campaign's voter file usually starts as a copy of the official rolls and then has extra fields appended — modeled partisanship scores, phone numbers, or consumer data — by a data vendor. So the relationship is simple: the rolls are the source maintained by election offices, and the voter file is the working copy a campaign targets and canvasses from. For a field-level breakdown of what lives inside, see what data fields are in voter files.
Exact fields vary by state law, but most rolls carry the same core records.
Every record carries the voter's full name and their registered residential address. This is what lets a campaign map voters to households and build a walkable route.
Registration status (active or inactive) and, in states that register by party, the voter's party affiliation. These are the first fields most campaigns filter on.
The record of which elections the voter participated in — never how they voted. Vote history is the single most useful field for predicting turnout.
When the voter registered and a unique voter ID number assigned by the election office. The ID is how records are matched and de-duplicated across updates.
The precinct and the legislative, congressional, and local districts the address falls in. This is what ties a voter to the specific races on their ballot.
Sensitive fields — full date of birth, Social Security digits, driver's license numbers — are commonly redacted or limited. What is public is set by each state's law.
The rolls are a living record. Election offices add, update, and remove entries year-round.
Voter rolls are not a static snapshot. Election officials update them continuously: new registrations are added, addresses change when people move, and party affiliations get switched. On top of that day-to-day churn, officials run periodic list maintenance — the process of removing records that no longer belong on the rolls.
A record can be removed, or "purged," when a voter dies, moves out of the jurisdiction, or is confirmed ineligible. Voters are also commonly moved to an inactive status — and eventually removed — if they stop responding to official mailings and do not vote over a span of federal election cycles. Federal law, principally the National Voter Registration Act, plus each state's own rules, set the notices and waiting periods that must happen before a record is taken off the rolls. The practical upshot for a campaign: because the rolls are maintained on this cadence, working from a recent copy matters. An old export can send canvassers to voters who have moved away or to addresses that no longer match the file.
From a raw government list to a targeted walk route — here is the path a campaign actually takes.
There are two common ways to get the rolls. A campaign can request the public voter file directly from a state or county election office — most states make registration records available to candidates, parties, and sometimes the public under public-records law, often for a fee and with limits on commercial use. Or it can buy a cleaned, enhanced copy from a data vendor that has already standardized addresses and appended scores. For the trade-offs, see how to buy voter data and the top voter data vendors compared.
However the rolls arrive, the workflow is the same. The campaign targets a subset — filtering by party, vote history, district, and other fields to decide who is worth a knock — then turns that subset into walkable turf for canvassers. The two best fields for this are usually party registration and vote history; for the latter, see how to use voting history data to win elections. This targeting step is what separates an efficient field program from one that knocks every door in town.
doornoc is field-first software: it focuses on targeting and canvassing the rolls, not selling data or running phone or fundraising programs.
doornoc ships with built-in voter data, so many campaigns can filter and target voters without sourcing the rolls themselves. See what is included on the voter list page.
Already pulled the rolls or bought a file? Use List Upload to drop in a CSV, Excel, or JSON file and doornoc matches every voter to an address.
Filter by party, vote history, and district to narrow the rolls down to the doors actually worth knocking, instead of the whole jurisdiction.
Draw a polygon route on the map or run Auto Turf to slice your targeted voters into balanced, walkable lists in seconds.
Volunteers walk the route in the mobile canvassing app — live tracking, offline support — and every knock syncs back to the manager's dashboard.
Voter rolls are the official lists of registered voters maintained by government election officials — usually a state or county election office. Each entry is a registration record for one voter, typically showing name, registered address, party (in states that register by party), and the elections that voter has participated in. Voter rolls are the working copy of the voter registration system: when you register, get purged, or move, the change shows up on the rolls. The terms "voter rolls" and "voter registration rolls" mean the same thing.
They describe the same underlying data from two angles. "Voter rolls" is the older, official term for the lists of registered voters that election offices keep and use to run elections. "Voter file" is the term campaigns and data vendors use for that same registration data once it is exported into a database — often with extra fields like modeled scores, phone numbers, or consumer data appended. In short, the rolls are the government source; the voter file is the campaign-facing copy you actually work with.
Most voter rolls include each voter's full name, registered residential address, registration status (active or inactive), party registration where applicable, and vote history — the record of which elections the person voted in, not how they voted. Many also carry a voter ID number, registration date, and precinct or district assignments. Exactly which fields are public varies by state law; some fields, like full dates of birth or Social Security digits, are commonly restricted or redacted.
Election officials update voter rolls continuously as people register, move, or change parties, and they periodically run "list maintenance" to remove records that no longer belong. Removals can happen when a voter dies, moves out of the jurisdiction, or is flagged as inactive after not responding to mailings or not voting over several federal election cycles. List maintenance is governed by federal law (the National Voter Registration Act) and state rules, which set the notice and waiting periods before a record can be removed.
Most states make voter registration rolls available to candidates, parties, and sometimes the general public under public-records law, often for a small fee and with restrictions on commercial use. Campaigns can request the file directly from a state or county election office, or buy an enhanced version from a data vendor that has already cleaned and appended it. doornoc includes built-in voter data so most campaigns can target and canvass without sourcing the rolls themselves — and if you already have a list, you can upload it instead.
It depends on the state. Many states treat basic registration records as public and allow candidates, parties, journalists, researchers, or any requester to obtain them, while others limit access to political and election-related uses or restrict certain fields. Selling or using voter data for commercial marketing is barred in a number of states. Always check your specific state election office for the rules that apply — this page is general information, not legal advice.
Built-in voter data, list upload, automatic turf cutting, and a mobile app with live knock tracking and offline support — priced per campaign, with no per-volunteer fees.