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Choropleth story maps

Studio

Shade regions by a rate - elections, health, sales - with open geo stacks and honest color scales. Work. regional comparisons, civics assignments, territory…

At a glance
Score intensity

Darker cells mean a higher score for this topic on that metric.

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Quick answers

When should I pick Choropleth story maps?

When the story is: regional comparisons, civics assignments, territory KPIs.

When should I avoid Choropleth story maps?

Skip it in cases like: raw counts without normalizing by population or area.

Who invented or popularised it?

Baron Charles Dupin (1826); modern TopoJSON + D3 geo pipelines

What does it encode?

color of administrative regions mapped to a quantitative rate

Is it OK in ads?

Yes if one claim is visible at a glance in Meta, Google and retail print; otherwise link to a full figure.

Will a teacher accept it?

Yes for lab reports and poster boards if axes, units and a source line are present.

Start with this section - Studio

Choropleth story maps encodes values as color of administrative regions mapped to a quantitative rate. Baron Charles Dupin (1826); modern TopoJSON + D3 geo pipelines.

In reports, ads and assignments it fits regional comparisons, civics assignments, territory KPIs. Skip it when raw counts without normalizing by population or area.

Studio

Make shapes, diagrams and charts in the browser. Download SVG or PNG — nothing is uploaded.

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Steps

  1. Steps 1 — Write the claim in one sentence.
  2. Steps 2 — Check that Choropleth story maps fits the claim. If not, switch.raw counts without normalizing by population or area
  3. Steps 3 — Draw it flat in Excel or Google Sheets or PowerPoint.
  4. Steps 4 — Direct labels, faint grid, claim-title.
  5. Steps 5 — Check greyscale and a color-blind simulator.
  6. Steps 6 — Add source, period, units; export SVG/PDF.

Choropleth story maps: honour color of administrative regions mapped to a quantitative rate, and switch when raw counts without normalizing by population or area.

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