Choropleth Map of County Data

100%

Choropleth Map of County Data

✓ Published2🌍 Public

Last edited Oct 31, 2020

Created on Oct 31, 2020

Forked from Choropleth Map of County Data

This choropleth map visualizes county-level poverty rates across the United States. The map uses a green color scale, with darker shades indicating higher poverty percentages, and includes a legend with a color gradient. The visualization is rendered as an SVG and built with D3 v5, using `d3.geoPath` to draw county and state boundaries from a TopoJSON file. County data is loaded from a CSV and mapped to colors via `d3.scaleThreshold`, while tooltips display the exact poverty rate for each county.

AI-generated description

An example including some commonly used features of SVG.

MIT Licensed

Similar vizzes

Loading thumbnail…

Choropleth Map of County Data

A choropleth map displays the poverty rate for counties across the United States, with each county shaded according to its value. The visualization uses a threshold color scale with a green sequential scheme, and includes a legend showing the percentage ranges. The map is rendered as SVG using d3.geoPath and TopoJSON, with state boundaries drawn as a white mesh. Data is loaded from external JSON and CSV files, and colors are assigned via d3.scaleThreshold.

JJacob Souch

97% match

Loading thumbnail…

Choropleth Map of County Data

This choropleth map displays poverty rates across U.S. counties, with each county filled using a green sequential color scale from d3.scaleThreshold and d3.schemeGreens[5]. The visualization loads county boundaries from a TopoJSON file and joins them with CSV poverty data via d3.map, rendering the geographic features as SVG paths using d3.geoPath. A legend with a linear scale and axisBottom shows the poverty percentage range, while state borders are drawn as white strokes using topojson.mesh. Tooltips provide exact poverty percentages on hover.

Ssayanighosal34

96% match

Loading thumbnail…

Choropleth Map of County Data

A choropleth map of U.S. counties visualizes poverty rates as filled paths, with a color legend and axis labeling the percentage scale. Built with d3.v5, it loads TopoJSON county boundaries and a CSV of poverty data, then uses d3.geoPath to render SVG shapes and d3.scaleThreshold with d3.schemeGreens for the color encoding. State borders are drawn as white mesh lines, and hover tooltips show each county’s exact rate.

Yyqinolive

95% match

Loading thumbnail…

Choropleth Map of County Data

A choropleth map shades U.S. counties by poverty rate, with a color legend and state boundaries overlaid. The visualization loads GeoJSON topology and CSV data via promises, then uses `d3.geoPath` and TopoJSON to render county shapes, while `d3.scaleThreshold` and `d3.schemeGreens` map poverty percentages to fill colors. County paths include tooltips showing the exact rate, and an axis below the map labels the legend’s tick values.

YYash G

94% match

Loading thumbnail…

A9 Choropleth

This choropleth visualizes U.S. county-level poverty rates for 2021, with each county colored along a threshold scale of green shades; hovering reveals a tooltip with the county name and its exact percentage. The map is rendered as SVG using D3 v7’s `d3.geoPath` and TopoJSON `topojson.feature` to draw county boundaries, while a separate mesh path outlines counties lacking data. Poverty data is loaded from a CSV via `d3.csv`, and the color legend is generated with the d3-legend library. The visualization also includes a title and uses a linear scale to position the legend.

NNoah C.

93% match

Loading thumbnail…

Choropleth map in D3 - Poverty Estimate

This choropleth map displays the estimated poverty rate for each US county in 2021, using a blue color scale to show the percentage of the population in poverty. The map is rendered as an SVG using d3.geoPath and topojson features, with state boundaries outlined in white. A legend and title are included, and the data, sourced from the USDA, is loaded from a CSV file and joined to the map using county IDs. The visualization uses D3 v5 and the topojson library for geographic data processing.

EEunice Tu

92% match

Loading thumbnail…

D3 - Choropleth

This choropleth map visualizes poverty rates across U.S. counties in 2022, with counties colored according to a blue sequential threshold scale and state boundaries overlaid in white. The visualization includes an interactive legend and a tooltip that displays county name, state, and poverty value on mouseover. The code uses d3.geoPath to render geographic shapes, d3.scaleThreshold with d3.schemeBlues for color mapping, and topojson.feature to process the US county data. Data is loaded from a CSV file and merged with US TopoJSON geometry, with the rendering handled in SVG.

CChandana Srinivas

91% match

Loading thumbnail…

A9 Choropleth Map in D3

This choropleth map visualizes poverty rates across U.S. counties, using a blue sequential color scale to encode the percentage of residents in poverty for 2021. County boundaries are rendered as SVG paths via `d3.geoPath()` from TopoJSON data, while color values are mapped from a CSV dataset joined by FIPS codes. The map includes a hover tooltip via SVG `<title>` elements, and missing data appears gray. It uses D3 v7, TopoJSON, and d3-legend for potential legend support.

EEric Yao

91% match