AI-ASSISTED · EDITOR-REVIEWED
Theme brief
Urban and rural are a gradient shaped by density, land cover, access and lived identity. Compare more than one definition, or focus on the transition zone where official boundaries and visible settlement patterns disagree.
Official prompt“Urban or rural. Cities and countryside.”
30DayMapChallenge 2026
WAYS IN
Four map ideas
- 01
Compare built-up density at equal scale across an urban core and rural town.
- 02
Trace the expansion of a city edge over three decades.
- 03
Map where census definitions disagree with night-time light.
- 04
Show travel time to essential services across the urban-rural gradient.
IN THE DIRECTORY
Recommended tools
Google Earth Engine
Designed for multi-date satellite and land-cover analysis at regional scale.
Freemium · View detailsQGIS
Combines imagery, population grids and administrative statistics locally.
Open source · View detailsGlobal Human Settlement Layer
The MapTools listing points to a consistent global settlement data source.
Free · View detailsWorldPop
Useful for gridded population context beyond administrative boundaries.
Free · View detailsSTART WITH A CLEAR LICENSE
Data sources
Built-up surface, settlement model and population grids across time.
Free reuse · source acknowledgment requested WorldPop population gridsGridded population estimates and demographic layers.
Usually CC BY 4.0 · check dataset NASA Black Marble night lightsNight-time light products at daily, monthly and annual intervals.
Open NASA data · attribution requestedLicenses are a planning aid, not legal advice. Check the source record and version you actually download; terms can vary within a catalog.
BEFORE YOU EXPORT
Cartography check
Use the same scale, extent and classification when making side-by-side comparisons; otherwise design differences can masquerade as geographic ones.
COMMUNITY MAPS
Selected work
First participate officially by posting publicly with #30DayMapChallenge. You can then suggest that original post for our independent MapTools picks. We link to the source, credit every author and use images only with permission.
Suggest for MapTools picks