Corrections

Last reviewed September 4, 2026

We correct errors in public. When a page changes in a way that alters a fact, the change is logged here with its date rather than edited away quietly.

The log

Reporting an error

If a figure on this site is wrong, we want to know. Useful reports include:

• The page it is on.
• The figure or statement you believe is wrong.
• What you believe it should be, and where that comes from.

Data corrections are the most valuable. If a county page reports an insurer count that does not match what is actually sold at your address, that is worth telling us — the underlying federal files are a snapshot and reality moves.

What we do about it

1. Check it against the primary source, not against what we published.
2. Fix it everywhere it appears. Derived figures are computed in one place, so a corrected input propagates rather than leaving stale copies.
3. Log it here with the date, what was wrong, and what it is now.
4. Update the reviewed date on the affected pages.

What counts as a correction

A change to a fact: a wrong figure, a wrong date, a wrong description of a rule. Rewriting a paragraph for clarity is not a correction and is not logged. Annual data refreshes are not corrections either — those are noted by the review date on each page.

Where the data itself may be wrong

Some limits are inherent and worth stating rather than discovering:

• Federal marketplace files are published on a lag. The 2026 release describes the 2026 plan year, and insurers may since have entered or left your county.
• Uninsured rates are model-based estimates from the Census Bureau, with margins of error that are wider in small counties.
• 35 counties are excluded entirely because one or more required fields is missing from the federal source.

These are limits of the data, not errors in it, and we would rather name them here than have them found.