About the data

Where the numbers come from

Where a state's election office publishes monthly reports that this site can read, the figures come straight from those reports, and each one links to its source file. For other states, figures come from posts by @Grassroots20244, who posts one state's party registration totals most days and a national roll-up near the end of each month. When both exist for the same month, the state report is shown and any difference from the post is noted.

How new numbers get added

Scheduled jobs check X for new posts and check state election offices for new reports. They read the numbers and propose them as a change for review. Nothing is published until someone compares the numbers against the source and approves them.

Calculated values

Posts usually include a change for the month and sometimes a change since 2020. From those, the site works out the previous month's totals and the 2020 level. These appear as hollow points or are labeled “Calculated.” When the actual earlier post is added, it replaces the calculated value, and any mismatch is flagged.

What to keep in mind

• His posts cover only Democrats and Republicans. Where state reports are used, unaffiliated voters are shown too; they're a large share in states like Colorado.
• States count voters differently. Some report only active voters (people with a confirmed address), others include inactive voters. Each state page says which count it uses.
• Drops in registration are often list maintenance: states regularly remove voters who moved or died. A party losing registrations doesn't necessarily mean people switched parties.
• Month labels follow the post. States publish on different schedules, so “September” may mean a report dated the first of the month in one state and mid-month in another.
• Some posts say “longer trend” without naming a start date. These are treated as change since 2020 and labeled that way.
• The national figure on the map compares his posted total with the sum of the state posts on this site, which only covers states added so far.

Who runs this site

This site is maintained by @sock_puppet1787 on X.

States that register by party

Alaska, Arizona, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Idaho, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Utah, West Virginia, Wyoming. The rest don't record party on registration, so they appear grey on the map.