Choropleth Map Maker — Shade Regions by Your Data
Create a choropleth map that colors countries, states, counties, or NUTS regions by value. Built-in boundaries, automatic data matching, and 8 color scales — no GIS, no code.
Free to start. No credit card required.
A choropleth map shades geographic regions by a data value so spatial patterns in demographic, economic, or election data become obvious at a glance. Mapji makes one without shapefiles or GIS software.
Pick a geography — countries (ADM0), states (ADM1), counties (ADM2), or European NUTS1–3 regions — and Mapji matches your values to regions by name or code automatically. Choose a color scale, give the legend a title, then publish or embed. In the app the type is listed as Region Map, and visitors hover any region to read its value.
Built-in boundaries
Countries, states, counties, and European NUTS regions ready to use — no shapefiles.
Automatic data join
Match your spreadsheet values to regions by name or ISO/NUTS code.
Color scales, classes & legends
Pick one of 8 color scales — sequential or diverging — on a smooth ramp or in 3–8 classes by quantiles, equal intervals or your own breaks, and title the legend so the distribution reads at a glance.
Live from a sheet
Connect a Google Sheet to keep the choropleth current.
How it works
Create a Choropleth map
Start a new site and choose Region Map (choropleth).
Pick a geography
Search the catalog for a country and region level.
Join your data
Upload values or connect a Google Sheet; Mapji matches them to regions.
Style & publish
Choose a color scale and a legend title, then publish or embed.
Related map types
Choropleth Map
Color geographic regions by data values to reveal spatial distributions. Perfect for demographic, economic, and election data.
Heatmap
Visualize data density with smooth heat gradients that reveal geographic patterns at a glance.
Time Slider Map
Animate data over time with an interactive timeline. Watch patterns emerge as you scrub through dates.
Frequently asked questions
What kind of data works best on a choropleth map?
Values already aggregated per region — population, income, turnout, case rates. Rates and per-capita figures usually read better than raw counts, because shading by count makes large regions look more significant than they are.
How do I make a choropleth map online?
In Mapji, create a Choropleth map, pick a country and region level, upload or connect your data, choose a color scale, and publish — no code needed.
Which regions can I use?
Countries, states/provinces, counties, and European NUTS1–3 regions are built in, sourced from geoBoundaries and Eurostat GISCO.
Ready to build your map?
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