National & state map
U.S. county map & metric explorer
Color every county in the country by any metric, or zoom into a single state for closer analysis. Alaska and Hawaii are inset in the lower-left at the national level and use a proper Albers projection when selected as a state.
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Continuous gradient. Endpoints clipped to the 2nd / 98th percentile so a handful of
extreme counties don't compress the rest of the scale.