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Population & Census Data

Oak Ridge LandScan

LandScan is a global ~1km population distribution dataset from Oak Ridge National Laboratory that represents ambient daytime population, widely used for disaster risk analysis and humanitarian planning.

Format GeoTIFF / ESRI Grid
Coverage Global
Resolution ~1km (30 arc-seconds)
License Free for research (registration required)
Update Annual releases
Download source Open official source

Format

GeoTIFF / ESRI Grid

Geometry

Raster (population grid)

Coverage

Global

Resolution

~1km (30 arc-seconds)

About this dataset

Global population distribution at ~1km resolution from Oak Ridge National Laboratory, widely used for risk analysis and humanitarian planning.

LandScan is a global population distribution dataset at approximately 1km (30 arc-second) resolution developed by Oak Ridge National Laboratory. It represents ambient population (where people are during the day) rather than residential population, making it particularly useful for disaster response and risk assessment.

Disaster risk assessment Humanitarian response planning Ambient population modeling

How to download

  1. 1 Register for a free account on the LandScan portal.
  2. 2 Select the desired year and geographic extent.
  3. 3 Download the GeoTIFF or ESRI Grid population raster.
  4. 4 Open the raster in GeoDataViewer or QGIS for analysis.

LandScan portal

Registration required for download

→

LandScan documentation

Methods and algorithm documentation

→

FAQ

How is LandScan different from census population data?

LandScan models ambient (daytime) population distribution at 1km resolution using multi-source data, whereas census data typically measures residential (nighttime) population at administrative unit boundaries.

Is LandScan free?

LandScan is free for research and educational use after registration. Commercial licenses are available separately from Oak Ridge National Laboratory.