Demonstration 02
Hover for information
Move your mouse over any county and its details appear at once, without a click. Hover interactions are ideal for letting a viewer explore a dataset quickly — the map answers questions as fast as the eye can move.
County
Hover over a county in Hawaiʻi to see its statistics.
Data: 2020 U.S. Census county boundaries & population, Hawaiʻi Statewide GIS Program (public domain).
This rebuilds a classic ArcGIS-API sample on modern, open Leaflet. The
original relied on a demographics map service that has since gone offline; here the same
behavior runs entirely from a small local data file.