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US Population Map

An interactive map showing population statistics across the United States with a toggle to switch between total population and population density.

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About This MicroSim

This choropleth map visualizes population patterns with two views:

Total Population: - Dark red = Most populous states (20+ million) - Light pink = Least populous states (under 1 million)

Population Density: - Dark red = Most dense (500+ people per square mile) - Light pink = Least dense (under 25 people per square mile)

Use the toggle buttons to switch between views. Hover over any state to see exact numbers.

Key Concepts Demonstrated

  • California and Texas have the largest total populations
  • New Jersey and Rhode Island have the highest population density
  • Wyoming and Alaska have both low population and low density
  • Large states like Alaska and Montana can have many people but still be sparsely populated

Lesson Plan

Learning Objective: Students will analyze the difference between total population and population density.

Bloom's Taxonomy Level: Analyze (L4)

Activities:

  1. Compare Views (5 min): Toggle between views - which states change color the most?
  2. Big vs Dense (5 min): Find states that are populous but not dense (Texas) and dense but not populous (Rhode Island)
  3. Discussion (5 min): Why might people live close together in some places but spread out in others?

Technical Notes

  • Built with Leaflet.js choropleth visualization
  • State boundaries from PublicaMundi GeoJSON
  • Population data from 2023 Census estimates
  • Population
  • Population Density
  • Urban vs Rural
  • Thematic Maps