About County Maps US

Why this exists

There is no shortage of websites showing US county maps. The problem is that most of them cite nothing. A survey of the closest competitors found roughly 9,500 county pages across three sites carrying no source attribution and no data vintage at all, with one of them serving 2020 decennial counts as current figures in 2026.

The larger data sites do better on citation and worse on maps: two of the biggest publish thousands of county pages that load no mapping library of any kind. A page called "county population" with no map of the county is a strange artefact.

This site does both. Every one of the 3,144 county-equivalents gets its real boundary and its current figures, and every figure names the file and the vintage it came from.

Who makes it

County Maps US is edited by The County Maps US editorial team. The explainer articles are written and edited by hand. The county, state, ranking and comparison pages are generated by a data pipeline from federal datasets, and that pipeline is reviewed before each publication.

We disclose that generation openly because it is the honest description of how a site with thousands of data pages is actually made, and because the alternative, implying that someone hand-wrote 3,144 pages, would be a lie.

What is not automated: the decisions about which sources to trust, how to handle the places where the standard model breaks, what to do when a figure is missing, and every sentence of prose that is not a rendered number.

What we try to get right

• The awkward cases. Louisiana's parishes, Alaska's boroughs and census areas, Connecticut's planning regions, Virginia's independent cities, and the 35 entities with no county government. Most datasets assume every state has straightforward counties, and every page they produce for those places is subtly wrong.
• Vintage. Three Census products give three different populations for the same county. We say which one a figure came from rather than presenting a number and hoping.
• Missing data. A blank cell tells a reader nothing. Where a figure does not exist we say so and say why.
• The map. Boundaries are simplified for display, but simplified per state so the amount is provably invisible at the size the map is drawn, rather than at one national setting that ruins small states.

What this site does not do

It does not serve county government business. Property records, tax bills, assessor lookups, permits, jail rosters and court filings all live with the county itself, and no third-party site should stand between a resident and their county government. County pages link to the official county where one exists and stop there.

It does not sell parcel data, plat maps or property boundaries. Those need parcel-level records we do not have and would not pretend to.

It does not offer investment, legal or relocation advice. The figures here describe places; they do not recommend them.

Corrections and contact

If something here is wrong, tell us and we will fix it. Contact details, and the methodology if you want to check our working first. The sources page lists every dataset and its licence.