The map

Every hidden bar, plotted.

All 1,384 listings on one map, clustered so you can see where the scenes actually are. Gold pins are bars sitting in buildings on the National Register of Historic Places. Click a cluster to zoom in, a pin for the venue.

In a listed historic building Everything else

Where they cluster, and why

New York, Los Angeles and Chicago lead, which is no surprise. The interesting ones are the outliers. Wisconsin sits far above its population — it never enforced Prohibition with much enthusiasm, has the densest tavern culture in the country, and the basement building stock to match. Charleston carries a remarkable number for its size.

Thin areas are usually a data gap rather than a dry county. A bar that wants to stay quiet does not get mapped, and open data finds the ones with a website first.

On the pins

Coordinates come from the Overture Maps Foundation and OpenStreetMap and are accurate to the building in most cases. They are a starting point for finding a place, not a substitute for the venue’s own address — and for a bar reached through another business, the pin is the front door of the building, not the door you are looking for.