About

The maps on this page visualize various United States Census data so that it can be explored spatially and over time.

County Time Series

The graph dashboards contain detailed information for the currently selected location; clicking a county on the main map changes the charts and visuals on the dashboard to display information for that particular county in context for the current census dataset. The charts vary depending on what I thought the best way to display data for the current dataset was. There are radial (circular/pie) charts that put counties and states in context compared to one another, and the line graph typically displays the data over time or data curves for each census period.

The histogram and map are also linked

Selecting on the map updates the dashboard, but then you can also select a range of data on the histogram to show only that data on the map. I use a react histogram library to do this, you can check it out at Interactive histograms.

Everything has a tooltip

If you want more data, hover over something, or tap it on a mobile device. This should bring up more information, whether it is just a name or the specific values for that location, point on the line, or slice in the circular graphs.