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GIS Data

Data by Geography


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Commercial Imagery Sources

These companies are known to have large imagery libraries available. No endorsement is implied.

Pacific Islands

  • Asia-Pacific Data Research Center (UHM School of Ocean and Earth Science and Technology)
    Oceanographic and atmospheric data. Some data is restricted use. Consult the tutorial on using these datasets.
  • Fagatele Bay National Marine Sanctuary GIS Data Archive
    This site hosts lots of data for American Samoa.
  • PacGeo
    An open access geospatial data repository for the Pacific Region providing geophysical, geodetic, and marine spatial data sets.
  • Pacific Islands Ocean Observing System (PacIOOS) Voyager
    An interactive map interface for visualizing and downloading oceanographic observations, forecasts, and other geospatial data and information related to the marine environment and beyond. Primary geographic focus at PacIOOS is on Hawaiʻi and other U.S.-affiliated Pacific Islands throughout Polynesia and Micronesia: American Samoa, Commonwealth of the Northern Mariana Islands,  Federated States of Micronesia, Guam, Hawaiʻi, Republic of the Marshall Islands, and Republic of Palau. U.S. Minor Outlying Islands are also included.

United States

Regions and Countries


  • Socioeconomic Data and Applications Center (SEDAC)
    A broad variety of worldwide and country datasets.
  • Diva GIS
    Data download by country. Includes administrative areas, inland water, roads, railroads, elevation, land cover, population, and climate.
  • Esri Data and Maps
    Publicly accessible layer files for use in ArcGIS. Searchable using box in upper right-hand corner of page.
  • GeoData@Tufts
  • Natural Earth Data
    Free vector and raster base data at 1:10m, 1:50m, and 1:110m scales for the entire world. Designed to meet the needs of production cartographers. Includes coastlines, continents, small islands, rivers, lakes, reefs, glaciers, bathymetry, administrative boundaries, roads, populated places, disputed areas, airports, railroads, urban areas, and more.
  • OpenStreetMap Data
    Free crowd-sourced data. Download data package for a large-scale area. Other data packages downloadable at these sites:
  • UN Data
    Downloadable tabular data for a broad range of indicators at the country level. Data are in various time series.